There are 3 red marbles and 8 blue marbles in a bag.
(a) What is the ratio of red marbles to all marbles in the bag?
(b) What is the ratio of all marbles in the bag to blue marbles?

Answer:

[tex]3.7*10^3[/tex]

Step-by-step explanation:

Step one:

given data

3,700 mile

In scienctific notation or in standard form  3,700 mile  is expressed as

[tex]3.7*10^3[/tex]

Answer:

brainliest plss

Step-by-step explanation:

1. y = 35x

2. y = 30x + 1

3. y = 35x

   y = 30 x + 1

4. Its more convenient to substitute y because It's easier.

    35x = 30(x + 1)

5.  35x = 30x + 1

    35x = 30x + 30

    35x -30x = 30

    5x = 30

    x = 6    (30/5 = 6)

    35 x 6 = 210 (y)

6. Both people have read 210 pages and it takes amir 6 days to catch up.

Answer:

(1)+49

(x+7)^2

(2) +16

(x+16)^2

(3) +25/4

(x+5/2)^2

Answer:

see explanation

Step-by-step explanation:

To complete the square

add ( half the coefficient of the x- term )²

x² + 14x

= x² + 2(7)x + 49

= (x + 7)²

----------------------------------------

x² - 8x

= x² + 2(- 4)x + 16

= (x - 4)²

-----------------------------------------

x² + 5x

= x² + 2([tex]\frac{5}{2}[/tex] )x + [tex]\frac{25}{4}[/tex]

= (x + [tex]\frac{5}{2}[/tex] )²

Answer:

q>3<10

good luck :)

Answer:

(4,4)

Step-by-step explanation:

The intersection point of 10y-11x=-4 and -2y+3x=4 is (4,4) on a graph.

As per linear equation, the solution of the given system of equations is x = 4, y = 4.

"A linear equation is an equation in which the highest power of the variable is always 1. It is also known as a one-degree equation.

The standard form of a linear equation in one variable is of the form Ax + B = 0. Here, x is a variable, A is a coefficient and B is constant. The standard form of a linear equation in two variables is of the form Ax + By = C. Here, x and y are variables, A and B are coefficients and C is a constant."

Given system of linear equation is:

10y - 11x = - 4 ......(1)

- 2y + 3x = 4​ ......(2)

Multiplying the equation (1) by 1 and Multiplying the equation (2) by 5 and then add both equations, we get:

   10y - 11x = - 4

+  (- 10y) + 15x = 20

-------------------------

    4x = 16

⇒ x = 4

Now, substituting the value of 'x' in the equation (2), we get:

- 2y + 3(4) = 4

⇒ - 2y + 12 = 4

⇒ - 2y = 4 - 12

⇒ - 2y = - 8

⇒ y = 4

Therefore, the solution of the given system of equations is x = 4, y = 4.

Learn more about a linear equation here: https://brainly.com/question/11897796

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Answer:

[tex]= -2x^2 +4x+ 16[/tex]

Step-by-step explanation:

From the given equation:

[tex](x+ 2 ) \ and \ (-2x +8)[/tex]

As a single equation, we have:

[tex]= (x + 2) \ \times \ ( -2x + 8) \ = 0[/tex]

open brackets

[tex]\implies -2x^2 +8x +(-4x) + 16[/tex]

[tex]= -2x^2 +4x+ 16[/tex]

Answer:

40 minutes

Step-by-step explanation:

Last year she ran five miles in 50 minutes

This year her timing improved by 20%. This means she runs 5 miles in 20% less time than last year

How long does it take her to run five miles?

= 50 minutes - 20% of 50 minutes

= 50 minutes - 20/100 * 50 minutes

= 50 minutes - 0.2 * 50 minutes

= 50 minutes - 10 minutes

= 40 minutes

This year, it takes her 40 minutes to run 5 miles

Answer:

thank you to your question i dont know if my

answer is correct this is my answer letter B

Answer: the 2nd one tan(- 5x/6)

Step-by-step explanation: because if you equal the numbers it will become a negative number i hope this helps :)

Answer:

6 divded by 5

Step-by-step explanation:

Answer:

11: 14

12: 50

13: 25

Sorry if I’m incorrect, I tried my best

Step-by-step explanation:

Answer:

11. 14 students total

12. $2.00

13. 64 cows

Step-by-step explanation:

I think i got all of these right, I hope this helps you out a little bit

Answer:

110

Step-by-step explanation:

In the triangle angle theorem the angles will all add up to equal 180.

180-20-50=110

Answer:

29.4 degrees

Step-by-step explanation:

a = 53 cm = opposite side to the angle

b = 94 cm = adjacent side to the angle [tex]\alpha[/tex]

tan = opp/adjacent = 53/94 = 0.5638

[tex]\alpha[/tex] = inverse tangent of .5638 = tan⁻¹ (.5638) = 29.4₋⁰

Answer:

32/50 reduced is 26/25.

Answer: 16/25

Step-by-step explanation:

- Factor 2 out of 32

- 2 (16)/50

-  16/25

Answer:

The original line and new line are the same.

Step-by-step explanation:

Lines have infinite length. Translating a horizontal line to the right or left will give the same line.

Answer:

me niether

Step-by-step explanation:

lol

Answer:

k = 51

Step-by-step explanation:

You just have to substitute the variable into -7

k = -10t - 19

k = -10(-7) - 19

k = 70 - 19

k = 51

Answer:

⇒Store i charges $4 for one-time membership fee and a fee of $1.50 per rented DVD

⇒Store ii charges $5 for one-time membership fee and a fee of $2 per rented DVD

⇒ Renting a DVD in shop {i} is cheaper than in shop {ii}

Step-by-step explanation:

In the first store, the equation for cost can be calculated as;

Find slope using the data set

Number of DVDs rented               Cost {$}

1                                                        5.50

2                                                        7.0

3                                                         8.50

m= Δy/Δx

m= 8.50 - 5.50 / 3-1

m= 3/2 = 1.5

Write the equation

m= Δy/Δx

1.5 = y-7/ x-2

1.5 { x-2 } = y-7

1.5 x - 3.0 = y-7

1.5x -3.0 + 7 = y

1.5 x + 4= y

C= 4 + 1.5 d  ------where d is the number of DVDs rented

Comparing the two equations that model the cost of renting DVDs

i) C= 4 + 1.5d

ii) C=5 + 2d

⇒Store i charges $4 for one-time membership fee and a fee of $1.50 per rented DVD

⇒Store ii charges $5 for one-time membership fee and a fee of $2 per rented DVD

For example 2 DVDs are rented in both store, you can find the store which is cheaper as;

i) C= 4 + 1.5d  = 4+ 1.5*2 = 4 + 3 = $7

ii) C=5 + 2d = 5 + 2 * 2 = 5 + 4 = $9

⇒ Renting a DVD in shop {i} is cheaper than in shop {ii}

   Renting a DVD from store (2) is costlier than renting from store (2).

         y = mx + b

         Here, m = slope of the line

         b = y-intercept

For store (1),

Let the linear equation representing the cost for renting the DVDs is,

C = md + b

Here, m = slope of the line passing through two points [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex]

m = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

And 'd' = Number of DVDs

Let the two points lying on the line are (1, 5.5) and (2, 7),

So the slope will be,

[tex]m=\frac{7-5.5}{2-1}=1.5[/tex]

Equation of the line will be → C = 1.5d + b

Since, this line passes through a third point (3, 8.5),

Substitute the values in the equation of the line,

8.5 = 1.5(3)+ b

8.5 - 4.5 = b

b = 4

Hence, equation of the line for the cost of renting a DVD from store (1) will be,

C = 1.5d + 4 ---------(1)

For store (2),

Equation of the line has been given as,

C = 2d + 5 ------(2)

Equation (1) represents a fixed cost of $4 and $1.5 for renting each DVD.

Equation (2) represents a fixed cost of $5 and $2 for renting each DVD.

If Donnie rents a DVD from both the stores,

Cost for renting DVDs at store (1) → C = 1.5(1) + 4 = $5.5

Cost for renting one DVD at store (2) → C = 2(1) + 5 = $7

      Therefore, renting a DVD from store (2) is costlier than renting from store (2).

Learn more about the linear equations here,

https://brainly.com/question/4695400?referrer=searchResults

Answer:

34 is not a mulitple of 7

Answer:

(0,-8)

x=0

y=-8

Step-by-step explanation:

There are a couple of ways you can solve this I used what I think is called the elimination method

We first start by writing the equations in linear form (y=mx+b)

For the first one we have -12x-5y=40

we add 5y to both sides and subtract 40 to get

-12x-40=5y

divide by 5 to get

-12/5x-8=y

Then the second one we have

12x-11y=88

same deal here, add 11y and subtract 88 to get

12x-88=11y

divide by 11 and get

12/11x-8=y

We then set the two equations equal to each other and get

-12/5x-8=12/11x-8

We can add 8 to both sides and get

-12/5x=12/11x

Just by looking at it you can see that the only solution for x is 0

Plug in 0 to the first equation and get -12*0-5y=40

This means that -5y=40

Solve for y and get -8

Answer:

x=0 , y= -8

Step-by-step explanation:

Answer:

I would say the answer is 5.03m^2

Step-by-step explanation:

Hope this helps! Please consider marking brainliest! I hope you have an amazing day. Always remember, your smart and you got this! -Alycia :)

Answer:

a

Step-by-step explanation:

Answer:

The answer would be -10

Step-by-step explanation:

(-2)+2*(-2)-10

4-4-10

-10

Answer:

225

505

Step-by-step explanation:

Answer:

157.5 and 505

Step-by-step explanation:

1.5 * 105

you can times both by 10 to get whole number

15*105 = 1575

add the decimal back

157.5

5 * 101 = 505

They arrive at the same answer because Jenna used the distributive property while Mia used the order of operations PEMDAS. In a lot of aspects of math, there are many approaches to reach the same answer.

Jenna's approach makes more sense, in my opinion, because when we multiply large numbers we're going to use the distributive property anyway. So why not just have it written down instead of done mentally in our head.

As a visual way to see why this works, check out the diagram below. We have a rectangle with height 5. The length of 34 is broken up into 30 and 4, so 34 = 30+4.

The blue portion has area of 5*30 = 150, while the red portion has area of 5*4 = 20. The two regions combine to 150+20 = 170.

So this diagram shows why Jenna's method is valid. Mia's method is valid as well, but again, we'll use some form of the distributive property to multiply 5 and 34. The only advantage that Mia has is that she uses one less written step compared to Jenna.

Answer:

ok what do you what me to do with it

Step-by-step explanation:

Answer:

12/52 or 23%

Step-by-step explanation:

take the total of all the candy and divide it by the number of green so there are 12 green and 52 over all so it would be 12/52

Answer:

3/13

Step-by-step explanation:

do the work for ur self

Answer:

180= 2x + 37 + 67 + 90

2x = 180 - 37 - 67 - 90

2x = -14

X= -7

A = -7 + 37 = 30

-7 + 67 = 60

30 + 60 + 90 = 180°