The explanation is on the picture please help me with my math

Answer:

(This way you have to solve for x)

way 1

step 1: 2x+=5

step 2: 2x=5-1

step 3: 2x=4

answer x=2

(This way you have to solve by rewriting in standard form)

way 2

step 1: 2x+1=5

step 2: 2x=5-1

step 3: 2x=4

answer x=2

Step-by-step explanation:

Answer:

20  dogs

Step-by-step explanation:

13 is half of 26 so if 26 pounds can feed 40 dogs then 13 pounds can feed 20 dogs.

Answer:

7/3

Step-by-step explanation:

3t^2 - 7t

T(3t-7)

T=0, 3t-7=0,.: t=7/3

The zeros are t=7/3

2root5y^2 +y-3 root 5

Pls does the root affect y tooo.

2y^2 + 9y + 2, while y = 7

Plug 7 in for y

2(7)^2 + 9(7) + 2

Simplify

98 + 63 + 2

Add together each term

163

Answer:

0 is a rational, whole, integer and real number. Some definitions include it as a natural number and some don't (starting at 1 instead).

Step-by-step explanation:

Hope this helps

-1/6 x -1/5

Convert fractions

1 x 5

6 x 5

-5/30

1 x 6

5 x 6

-6/30

-5/30x-6/30

1/30(Used a calculator to multiply)

hope it helps!

Answer:

1. How many points was each part worth?

 - 12 points

2. How many questions did part A have?

 - 2 questions

3. How many questions did Part B have?

 - 3 questions

Step-by-step explanation:

We can set up our equation like this:

6x = 4y

In the above equation, x is representing the number of true/false questions and y is representing the nymber of multiple choice questions.

Now, the problem tells us that they want the least number of points possible so we know we need to use low numbers.

Since 6 is higher than 4, it's easier to go off of there.

6 x 1 = 6                        4 is too big to go into 6 so we will move on.

6 x 2 = 12                      4 goes into 12 3 times so we can use this.

Now that we've figured this out, we can put it in our equation:

6(2) = 4(3)

In the above equation, we can see that I've put 2 in for x because we multiplied 6 by 2 to get 12. I also put 3 in for y because we multiplied 4 by 3.

Now we can start with the questions:

1. How many points was each part worth?

Each part was worth 12 points because we can multiply 6 by 2 and get 12 or 4 by 3 and get the same thing

2. How many questions did part A have?

Part A had 2 questions because this is what x was when we multiplied by 6

3. How many questions did Part B have?

Part B had 3 questions because this is what y was when we multiplied by 4

Hope this helps!!

Answer:

60 miles

Step-by-step explanation:

Take 20 and multiple by 3 which gives you 60

hope this helps

Answer:

60 miles

Step-by-step explanation:

20 miles in 1 hour

times 3 hours

20 x 3 = 60

Answer:

[tex]a_n=-3+2n+n^2}[/tex]

Step-by-step explanation:

[tex]a_0= -3+0+0=-3\\a_1=-3+2+1=0\\a_2=-3+4+4=5\\...[/tex]

Answer:

I believe the answer would be step 1: 12x + 15 = 12, and step 2: 12x = -3.

Step-by-step explanation:

3(4x + 5) = 12, you would foil and do 3 times 4x which is 12x, then do 3 times 5 which is 15. So the result would be 12x + 15 = 12.  And the step 2 that goes along with this answer. you would do -15 on both sides of the equal sign, so now you have 12x = 12 - 15 which is -3, so it would be 12x = -3

Answer:

Step 1 would be the answer: Step 1: 12x + 15 = 12 Step 2: 12x = −3 Step 1: 12x + 5 = 12

Step-by-step explanation:

Answer:The Alternate Exterior Angles Theorem states that if a pair of parallel lines are cut by a transversal, then the alternate exterior angles are congruent. Here we have a new pair of lines, parallel and crossed by a transversal.

Answer:

cost of 1 dozen cupcake =30$

cost 12 cupcake =30$

cost of 1 cupcake=30/12

=2.5$

Answer:

Im not gonna hand it to you, but heres what you need to solve it. :)

Step-by-step explanation:

An inverse function is a function that undoes the action of the another function. A function g is the inverse of a function f if whenever y=f(x) then x=g(y). In other words, applying f and then g is the same thing as doing nothing. We can write this in terms of the composition of f and g as g(f(x))=x.

Answer:

Step-by-step explanation:

y - 7 = 2(x - 1)

y - 7 = 2x - 2

y = 2x + 5

Answer:

8+8

Step-by-step explanation:

Answer: The answer is 88

Step-by-step explanation: It is recursive because you can add 78+10=88

The expression to determine number of muffins each friend gets is ; m = [tex]\frac{x}{3}[/tex] - 2.

It is given that 6 muffins are freeze and rest are equally shared among yourself and 2 friends.

We have to find out the number of muffins each one will get.

What is algebra ?

Algebra is the branch that deals with various symbols and the arithmetic operations such as multiplication , division , etc.

As per the question ;

The number of freeze muffins = 6

The rest of muffins are equally divided between me and 2 other friends.

Let's assume that the total number of muffins is x.

The number of muffins distributed between 2 friends and me is ;

= x - 6

The number of muffins (m) each one will get  ;

m =  [tex]\frac{x-6}{3}[/tex]

or

m = [tex]\frac{x}{3}[/tex] - [tex]\frac{6}{3}[/tex]

or

m = [tex]\frac{x}{3}[/tex] - 2

Thus , the expression to determine number of muffins each friend gets is ; m = [tex]\frac{x}{3}[/tex] - 2.

To learn more about algebra click here ;

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Answer:

≈ 33.3 cm²

Step-by-step explanation:

Given the linear ratio of 2 similar cones = a : b , then

ratio of their areas = a² : b²

Here the ratio of radii = 2 : 3 , thus

ratio of areas = 2² : 3² = 4 : 9

let x be the area of the smaller cone then by proportion

[tex]\frac{4}{x}[/tex] = [tex]\frac{9}{75}[/tex] ( cross- multiply )

9x = 300 ( divide both sides by 9 )

x = 33.33333

Thus

surface area of smaller cone ≈ 33.3 cm² ( nearest tenth )

Answer:

Distance ≈ 14.8

Step-by-step explanation:

Calculate the distance (d) using the distance formula

d = √ (x₂ - x₁ )² + (y₂ - y₁ )²

with (x₁, y₁ ) = (- 4, 6) and (x₂, y₂ ) = (3, - 7)

Hope this helps!!!!

Answer:

(7,6)

Step-by-step explanation:

plz mark as brainliest if it helps

Answer:

2 hours

Step-by-step explanation:

Answer:

About 2.5 hours

Step-by-step explanation:

divide 130 by 52 = 2.5

Answer:

14

Step-by-step explanation:

First, we must identify what the question is asking.

84 students are being split into 6 groups.

If you have a calculator, you can simply enter "84 / 6".

If not, we must do some long division!

6 | 84

How many times does "6" go into "8"? 1 time! Now we subtract 6 from 8.

  1      

6| 84                      (Bring down the 4 afterwards)

   -6      

  1      

6| 84                      How many times does 6 go into 24?  4 times!

   -6      

  24

  14    

6| 84                      How many times does 6 go into 24?  4 times!

   -6      

  24

The answer is 14!

Greetings from Brasil...

To solve this question, just replace X of function F(X) with A + 3

F(X) = 2X² - 4X - 3

F(A + 3) = 2 · (A + 3)² - 4 · (A + 3) - 3

      (A + 3)² = A² + 2 · A · 3 + 3²

F(A + 3) = 2 · (A² + 6A + 9) - (4A + 12) - 3

F(A + 3) = 2A² + 12A + 18 - 4A - 12 - 3

The value of P for the expression PV = nRT will be P=nRT/V.

Mathematical expression is the combination of numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also be used to denote the logical syntax's operation order and other properties.

Given expression is PV = nRT. The value of p for the expression is calculated as:-

PV = nRT

P = nRT / V

Therefore, the value of P for the expression PV = nRT will be P=nRT/V.

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Answer:

Step-by-step explanation:

Since mean is the average number of students, the formula for calculating the mean attendance of students is expressed as;

Mean = total number of student/sample size

[tex]\overline x = \frac{\sum Xi}{N}[/tex]

Given mean = 20

Since the question talks about the first four meetings, the sample size = 4

[tex]20 = \frac{\sum Xi}{4}\\ \\\sum Xi = 20 * 4\\\\\sum Xi = 80[/tex]

Since the sum total of students for the first four meetings is 80, hence the number of students who attended the meeting is greater than 20

Answer:

Probability = [tex]\frac{3}{5}[/tex]

Step-by-step explanation:

Length of segment AD = 12 units

Since, AC = CD

Therefore, AC = CD = [tex]\frac{12}{2}[/tex] = 6 units

Since, AB = BC

Therefore, AB = BC = [tex]\frac{1}{2}AC[/tex] = 3 units

Number of total segments = 5

Number of segments having measure greater than three = 3

(AC = CD = 6 units and AD = 12 units)

Probability that the measure of a segment is greater than 3

= [tex]\frac{\text{Number of segments measuring greater than 3}}{\text{Total number of segments}}[/tex]

= [tex]\frac{3}{5}[/tex]

Well, I dont think that amount of money is a real amount so.

But my guess would be $8.60

Explanation:

Since you provided us with 5,9, and 7, you should use the 7 to round up the next number. So, you round the 9, to 10, so you add the 1 from the 10, on the 5. So it is 6. So your answer is $8.60.