If x is 300 then what is the answer to this equation, 3x plus 10 minus 17x

Giselle worked 12 hours as a carpenter

She also worked 18 hours as a blacksmith

Giselle worked as both a carpenter and a blacksmith

She earned $20 per hour working as a carpenter

She also earned $25 per hour working as a blacksmith

She worked for 30 hours to earn $690

Let x represent the number of hours that she worked as a carpenter

Let y represent the number of hours that she worked as a blacksmith

x + y= 30........equation1

20x + 25y= 690......equation 2

From equation 1

x + y= 30

x= 30-y

Substitute 30-y for x in equation 2

20(30-y) + 25y= 690

600-20y+25y= 690

collect the like terms

600+5y=690

5y= 690-600

5y= 90

y= 90/5

y= 18

Substitute 18 for y in equation 1

x+y= 30

x+18= 30

x= 30-18

x= 12

Hence Giselle worked 12 hours as a carpenter and 18 hours as a blacksmith

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Answer:A system of linear equations has no solution when the graphs are parallel. Infinite solutions. A system of linear equations has infinite solutions when the graphs are the exact same line.

Step-by-step explanation:

1) The function f(x) is defined as follows: B. F(x) = -(x + 2)²(x - 2).

2) The standard definition of function f(x) is given as follows: A. F(x) = ax³ + bx² + cx + d.

4. The solution to the system of equations is approximated by the following option:

A. (-3.43, 6.30).

The function for item 1 is defined considering it's roots, as follows:

Hence the function is defined as follows:

F(x) = a(x + 2)²(x - 2).

The y-intercept is positive, meaning that:

-8a > 0.

Thus the leading coefficient a is negative, and the correct option is given by option B.

The cube function, with all positive coefficients, is given by option A in item 2.

The graphic solution of a system of equations is given by the point of intersection of all the equations that compose the system.

The equations that compose the system in this problem are given as follows:

For this problem, the systems are composed by a third degree function v(x) and a linear function b(x), hence we graph them and obtain the point of intersection.

From the graph given by the image presented at the end of the answer, the coordinates of the point of intersection are presented as follows:

(-3.432, 6.296).

This means that, using rounding, the correct option is given by option A for the solution of the system of equations.

Item 1 asks to define the graphed function, while item 2 asks for the standard cube function.

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The probability of flipping four coins is 0.0625

Total coins = 4

The study of chances, which are determined by the ratio of favourable occurrences to probable cases, is known as probability.

When flipping a coin, there are two possible outcomes (heads or tails), hence the likelihood of flipping a head-up coin is equal to the likelihood of flipping a tail-up coin.

Thus, the probability is = 1/2

Calculating the probability of getting all heads or all tails when flipping 4 coins -

= 1/2 x 1/2 x 1/2 x 1/2

= 1/16

In decimal form, this will be 0.0625

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The larger of the two consecutive even perfect squares is $15,536$.

Square is a four-sided shape that has four equal sides and four right angles. It is the most basic of all quadrilaterals and is a two-dimensional shape. A square has a line of symmetry that passes through the center and divides it into two equal halves. All four sides of a square are equal in length and all four angles are equal to 90 degrees.

To find this, we need to use the difference between the two squares and solve for the larger number. We know that the difference between the two squares is $268$, so we can write the following equation:

$15,536 - 268 = 15,268$

This equation tells us that the larger of the two squares is $15,536$.

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The larger of the two consecutive even perfect squares is 15,536.

Square is a four-sided shape that has four equal sides and four right angles. It is the most basic of all quadrilaterals and is a two-dimensional shape. A square has a line of symmetry that passes through the center and divides it into two equal halves. All four sides of a square are equal in length and all four angles are equal to 90 degrees.

To find this, we need to use the difference between the two squares and solve for the larger number. We know that the difference between the two squares is 268, so we can write the following equation:

So, 15,536 - 268 = 15,268

This equation tells us that the larger of the two squares is 15,536.

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Answer:

Step-by-step explanation:

O Statistic as it represents the sample

The number 2.5 is considered a statistic because it is calculated from a sample of second graders in a school district. This number is an estimate of the average number of pets that all second graders in the school district have, but it is not the exact number, as the sample may not be fully representative of the population. A parameter, in contrast, is a fixed value that represents a characteristic of a population, such as the population mean or population proportion. Since the number 2.5 is an estimate calculated from a sample and not the exact value of the population, it is considered a statistic.

On solving the provided question, we can say that in rectangle W = 4.5 yd since we are unable to have a negative length. L = 2W + 1 = 10 yd

A rectangle in Euclidean plane geometry is a quadrilateral with four right angles. You might also describe it as follows: a quadrilateral that is equiangular, which indicates that all of its angles are equal. The parallelogram might also have a straight angle. Squares are rectangles with four equally sized sides. A quadrilateral of the shape of a rectangle has four 90-degree vertices and equal parallel sides. As a result, it is sometimes referred to as an equirectangular rectangle. Because its opposite sides are equal and parallel, a rectangle is also known as a parallelogram.

length  rectangle is 1 yd more than twice the width: L = 2*W + 1

e area of the rectangle

[tex]45 = L*W\\45 = (2W + 1)*W\\45 = 2W2 + W\\0 = 2W2 + W - 45\\[/tex]

Factors

x[tex](2W-9)(W+5)\\W = 4.5 and -5[/tex]

W = 4.5 yd since we are unable to have a negative length. L = 2W + 1 = 10 yd

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At the end of 1.51 seconds, the velocity is 6.9 m/s, and at the end of 2.86 seconds, it is 24.64 m/s.

The dislocation that an article of particle experiences with regard to the time is expressed vectorially as velocity. The meter per moment (m/s) is the accepted unit of velocity profiles (also known as speed).

A. F = ma, where F is force, m is mass and a is acceleration.

a = 2.65/0.58

Performing division

a = 4.57 m/s²

With respect to final and starting velocities, acceleration, and time, the formula is v = u + at.

v = 4.57×1.51

The act of multiplying

v = 6.9 m/s.

B). New acceleration = 3.60/0.58

The act of multiplying

New acceleration = 6.2 m/s²

v = u + at

v = 6.9 + 6.2×2.86

Performing multiplication

v = 6.9 + 17.75

Performing addition

v = 24.64 m/s.

At two different locations, the velocities are 6.9 m/s or 24.64 m/s.

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Answer:

The last option:

Minnesota, Pennsylvania, Michigan, Florida

Step-by-step explanation:

Coldest to warmest:

-20°C, -10°C, 0°C, 16°C

Then the order is:

Minnesota, Pennsylvania, Michigan; Florida

Answer: b+164

Step-by-step explanation:

Answer: B + 164 = T

Step-by-step explanation:

T = TOTAL

B = LAST WEEK

Simplification of the exponential expressions using laws of exponents gives;

A) 1

B)  ¹/₂

C) 2

D) 2

Some of the laws of exponents states that;

1) When we multiply like bases, we must keep the base the same and add the exponents.

2) When we raise a base with a power to another power, we must keep the base the same and multiply the exponents.

3) When dividing like bases, we must keep the base the same and subtract the denominator exponent from the numerator exponent.

A) [(2 * 3⁻²)³(5 * 3²)²]/(3⁻²)(5 * 2)²

Applying laws of exponents, we have;

[(2² * 3⁻²*³)(5² * 3²*²)]/(3⁻²)(5² * 2²)

= 2² and 5² will cancel out to give;

3⁻⁶ * 3⁴ * 3²

= 3⁻⁶ * 3⁴⁺²

= 3⁻⁶ * 3⁶

= 3⁰ = 1

B) (3³) (4⁰)²(3 * 2)⁻³ (2²)

This can be broken down into;

3³ * 1 * 3⁻³ * 2⁻³ * 2²

= 2⁻¹ = ¹/₂

C) (3⁷ * 4⁷)(2 * 5)⁻³(5²)]/(12⁷ * 5⁻¹ * 2⁻⁴)

= (3⁷ * 4⁷)(2⁻³ * 5⁻¹)/((3⁷ * 4⁷ * 5⁻¹ * 2⁻⁴)

3⁷ * 4⁷ * 5⁻¹ will cancel out to get;

2⁻³/2⁻⁴ = 2

D) ((2 * 3⁻¹) * 2⁰)/(2 * 3⁻¹)

(2 * 3⁻¹) will cancel out to get;

2⁰ = 1

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50 different greek armies, the upper class and the lower class soldiers battalions can be sent.

The Greek army can form different battalions by choosing 4 upper class soldiers and 8 lower class soldiers from a total of 5 upper class soldiers and 10 lower class soldiers. This problem can be solved using a combination formula known as a binomial coefficient.

The number of different battalions that can be sent is:

(5 choose 4) * (10 choose 8) = 5*10 = 50

Different battalions can be formed by choosing 4 upper class soldiers and 8 lower class soldiers from a total of 5 upper class soldiers and 10 lower class soldiers. Therefore, 50 different battalions can be sent.

So, 50 different battalions can be sent.

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The equation to find the amount the rental car company will charge for any number of days is y = 75+20(n-3).

Mathematically, an equation can be defined as a statement that supports the equality of two expressions, which are connected by the equals sign “=”.

Given that,

The charge per day for a 3-day rental = 75/3 = 25

The additional charge for an extra 4 days is (155-75)= 80 which is $20 per day.  

The charge for a period of n days (n>3) is then 75+20(n-3).

Thus, The equation to find the amount the rental car company will charge for any number of days is y = 75+20(n-3).

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The earned commission would be $437.50.

What is a commission?

A commission is a payment made to an employee, typically in sales or finance, for services rendered in the form of a percentage of the revenue generated by the employee's efforts. It is a way for companies to incentivize employees to sell more products or services, as the employee's income is directly tied to the success of their sales efforts.

The salesperson earns $437.50 on commission. This can be calculated by multiplying $1,750.00 by 25% (0.25).

$1,750.00 * 0.25 = $437.50

Hence, the earned commission would be $437.50.

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3/7 of the posters are hanged in the hallway.

A fraction represents a part of a whole.

Given that Dave spreads out a roll of paper and cuts it into 7 equal-sized posters.

He decorates the posters and takes them to school.

Dave hangs 4 posters on the side of the gym

4/7 of the posters are on the  side of the gym.

The remaining posters are in the hallway.

1-4/7

LCM is 7

7-4/7

3/7

Hence, 3/7 of the posters are hanged in the hallway.

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Answer:

Answer for the investment problem: Fund 1 was $4,000  Fund 2 was $2,000

Answer for the tickets problem: 123 student tickets were sold and 235 non-student tickets were sold.

Step-by-step explanation:

Sorry I have to go so I don't have time to type up the explanation nicely, but here is my work.  Have a great night!

As per given digits of integers, the largest number of possible integers are 84.

Here we have given that the number is a multiple of 5 and the units digit must be 0 or 5.

Then let us consider that if 5 is the units digit then the thousands digit can be 1,2,3, or 4 so here we have 4 options.

Then let us consider that the hundreds digit also has 4 options because it can have 0.

Then the tens digit has 3 options which is written as,

=> 4*4*3 = 48

Similarly, let us consider that if 0 is the units digit, then 5 is the largest digit, there must be a 5 in the integer.

Here we have also note that if the 5 is the hundreds digit, then there are 12 ways.

And here there are 3 places the 5 could be so it can be written as

=> 12*3=36.

Therefore, the total possible numbers are written as

=> 48+36=84 Integers

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Answer:

There were 3 children in the room

Step-by-step explanation:

Let x be the number of children in the room

Since each child has 10 fingers including their thumbs, total number of fingers =10x

Each child has 2 ears so total number of ears = 2x

Since they had 24 more fingers than ears we get the equation:
10x - 2x = 24

8x = 24

x = 24/8 = 3

Answer: 21 boxes are needed

Step-by-step explanation:

Total area:  length  =  1.5 + 6.25 + 1.5  =  9.25     height  =  1.5 + 6.25  =  7.75

Total Area  =  9.25 x 7.75  =  71.6875

Area of the patio  =  6.25 x 6.25  =  39.0625

Area of the extension  =  Total Area - Area of the patio  =  71.6875 - 39.0625  =  32.625

Area covered by one box of tiles:  25 x 0.25 x 0.25  =  1.5625

Number of boxes needed:  32.625 / 1.5625  =  20.88  =  21 boxes

I hope this helps even though you already figured it out!

The simple interest rate that you are charged, based on the loan amount and the period of the loan, is 3. 5 %

Borrowers must pay lenders simple interest as a fee in exchange for a loan. Compound interest is excluded from the calculation and just the original principal is used. Simple interest applies to all loans, not just specific ones. Additionally, it refers to the kind of interest that banks give their customers on their savings accounts.

Simple interest is the amount of interest charged on a specific principal amount at a specific interest rate. Compound interest, on the other hand, is the interest that is computed using both the principal and the interest that has accumulated over the preceding period.

To find the simple interest rate, find the simple interest charged per year to be:

= 175 / 2

= $ 87. 50

Then , the simple interest rate would be:

= Simple interest per year / Loan amount

= 87. 50 / 2, 500

= 3. 5 %

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Answer:

[tex]a=15, b=0[/tex]

Step-by-step explanation:

The numbers are [tex]5w-1, 5w, 5w+1[/tex].

So. the sum is [tex]5w-1+5w+5w+1=15w \implies a=15, b=0[/tex].

Answer:

[tex]y \: = | \: x - 5| + 1[/tex]

As per the given positive divisors the second column is the prime number p, then the third is n=p2, and the right column is σ1(n)

Here we have know that Firstly we have to the function that the OP is describing is a well-known divisor function, then here let us use the common notation that can be written as

=> f(n)=σ1(n)

Then the next step is to note that σ1(n) is always an integer and then the square root in the OP's equation means that n must be a square number.

Here we have know that if n=p2 is a square of a prime number (p) then it has exactly 3 divisors then we have the those divisors are 1,p,n

And it can be written as,

=>  σ1(n)=1+p+n

Here we have also know that all other square numbers will have additional divisors is written as

=> σ1(n)>1+n−√n

Therefore the answer to the OP’s question is that the number of solutions within the range [1,2010] is equal to the number of primes squared in this range.

Here the term in which is equal to the number of primes in the range [1,√2010] and it has also do in which is number of primes in the range [2,44]

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Answer: he use 4 pepperoni more than sausage every times he put 10 meat on the pizza

Step-by-step explanation: both are on 10 so you don't need to change it so 7-3=4 and it's on ten which mean that every times he put 3 sausage, he have to put 7 pepperoni

The function's approximate range will be specified by -∞<y≤12.

The exact same number of elements from Y are assigned to each element of X via a mathematical function from a set X to a set Y.

The function's domain and codomain are respectively referred to as the sets X and Y as a whole.

Functions were first used to describe the idealized relationship between two varying quantities.

Now, drag as follows:

The collection of output values determines a function's range.

The function's indicated range will be -∞ < y ≤ 12.

From the linked graph,

The function's output values (values on the y-axis) range from zero to f(x)=12.

Therefore, the function's approximate range will be specified by -∞<y≤12.

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The number of non-similar 1000-pointed stars is

[tex]$\frac{1000-600-2}{2}= \boxed{199}.$[/tex]

If we join the adjacent vertices of the regular [tex]$n$[/tex]-star, we get a regular [tex]$n$[/tex][tex]-gon[/tex]. We number the vertices of this [tex]$n$[/tex][tex]-gon[/tex] in a counter clockwise direction: [tex]$0, 1, 2, 3, \ldots, n-1.$[/tex]

A regular [tex]$n$[/tex]-star will be formed if we choose a vertex number m where [tex]$0 \le m \le n-1$[/tex], and then form the line segments by joining the following pairs of vertex numbers:[tex]$(0 \mod{n}, m \mod{n}),$ $(m \mod{n}, 2m \mod{n}),$ $(2m \mod{n}, 3m \mod{n}),$ $\dots,$ $((n-2)m \mod{n}, (n-1)m \mod{n}),$ $((n-1)m \mod{n}, 0 \mod{n}).$[/tex]

If [tex]$\gcd(m,n) > 1$[/tex], then the star degenerates into a regular [tex]$\frac{n}{\gcd(m,n)}$-gon[/tex] or a (2-vertex) line segment if [tex]$\frac{n}{\gcd(m,n)}= 2$[/tex]. Therefore, we need to find all $m$ such that [tex]$\gcd(m,n) = 1$.[/tex]

Note that [tex]$n = 1000 = 2^{3}5^{3}.$[/tex]

[tex]Let $S = \{1,2,3,\ldots, 1000\}$, and $A_{i}= \{i \in S \mid i\, \textrm{ divides }\,1000\}$. The number of $m$'s that are not relatively prime to $1000$ is: $\mid A_{2}\cup A_{5}\mid = \mid A_{2}\mid+\mid A_{5}\mid-\mid A_{2}\cap A_{5}\mid$ $= \left\lfloor \frac{1000}{2}\right\rfloor+\left\lfloor \frac{1000}{5}\right\rfloor-\left\lfloor \frac{1000}{2 \cdot 5}\right\rfloor$ $= 500+200-100 = 600.$[/tex]

[tex]Vertex numbers $1$ and $n-1=999$ must be excluded as values for $m$ since otherwise a regular n-gon, instead of an n-star, is formed.[/tex]

The cases of a 1st line segment of (0, m) and (0, n-m) give the same star. Therefore we should halve the count to get non-similar stars.

Therefore, the number of non-similar 1000-pointed stars is

[tex]$\frac{1000-600-2}{2}= \boxed{199}.$[/tex]

[tex]Note that in general, the number of $n$-pointed stars is given by $\frac{\phi(n)}{2} - 1$ (dividing by $2$ to remove the reflectional symmetry, subtracting $1$ to get rid of the $1$-step case), where $\phi(n)$ is the Euler's totient function.[/tex] [tex]It is well-known that $\phi(n) = n\left(1-\frac{1}{p_1}\right)\left(1-\frac{1}{p_2}\right)\cdots \left(1-\frac{1}{p_n}\right)$, where $p_1,\,p_2,\ldots,\,p_n$ are the distinct prime factors of $n$.[/tex] [tex]Thus $\phi(1000) = 1000\left(1 - \frac 12\right)\left(1 - \frac 15\right) = 400$, and the answer is $\frac{400}{2} - 1 = 199$.[/tex]

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Answer:

2.92 it is so easy. Just you have to subtract them

Answer:2.92 pounds

Step-by-step explanation:

Eli needs to buy at least 24 sets of knives, as each set contains 10 knives and the restaurant needs 546 knives in total. This can be determined by solving the inequality 10x ≥ 234, where x is the number of sets of knives.

1. 312 + 10x ≥ 546

2. 10x ≥ 234

3. x ≥ 23.4

4. Therefore, Eli needs to purchase at least 24 sets of knives for the restaurant to have enough knives.

Eli needs to order new supplies for the restaurant where he works, and he needs to order at least 546 knives. There are currently 312 knives, so he needs to order more. If each set of knives contains 10 knives, then he needs to determine how many sets of knives he needs to order in order to have enough knives. To do this, we need to set up and solve an inequality. The inequality we need to solve is 10x ≥ 234, where x is the number of sets of knives. This can be solved by dividing both sides by 10, which gives us x ≥ 23.4. This means that Eli needs to purchase at least 24 sets of knives for the restaurant to have enough knives.

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We can use a proportion to determine how many flyers Sam needs to deliver to earn $45. A proportion is an equation that states that two ratios are equal. In this case, we can use the ratio of the number of flyers delivered to the amount of money earned.

What in mathematics is a linear equation?

According to Wolfram MathWorld A linear equation is an algebraic equation of the form y=mx+b, where m is the slope and b is the y-intercept, and only a constant and a first-order (linear) term are included. The variables in the preceding equation are y and x, and it is occasionally referred to as a "linear equation of two variables."

Let x be the number of flyers Sam needs to deliver to earn $45. The proportion can be written as:

x/45 = 10/1

We can solve for x by multiplying both sides of the proportion by 45:

x = (10/1)*45 = 450

So, Sam needs to deliver 450 flyers to earn $45.

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