Which expresions is equivalent to 2a + 5(b + 7a)?A.) 7a + 12b B.) 37a + 5b C.) 9a + 5b D.) 2a + 35b

Answers

Answer 1
Answer: Correct answer is B.

2a+5(b+7a)=2a+5*b+5*7b=2a+5b+35a=37a+5b :)
Answer 2
Answer: 2a + 5(b + 7a)\n\n\sf{Distribute~the~5}\n\n\sf{Distributive ~property:~a(b+c)=ab+ac}\n\n2a + 5(b + 7a)\n\n=2a + 5b + 5(7a)\n\n=2a + 5b + 35a\n\n=\boxed{\bf{37a+5b}}

Your final answer is B.

Related Questions

Barbara made a punch by mixing quarts of ginger ale with quarts lemonade. How many pints of punch did Barbara make? (1 quart = 2 pints) A. pints B. pints C. pints D. pints
Help plz I will give you brainiest if its correct :)
I don't get this problem. Lila decided to make kore baked goods for the bake sale. She used 1 / 8 lb less flour to make bread than to make cookies. She used 1/4 lb more flour to make cookies than to make brownies. If she used 1/2 lb of flour to make bread , how much flour did she use to make the brownies?
What is 2 and 928 ten-thousandths as a decimal?
Julian jogs 2 kilometers east, 4 kilometers north, and then 7 kilometers west. How far is Julian from his starting position, to the nearest tenth of a kilometer?

What is 4 7/8 written as an improper fraction?

Answers

39/8. When you change this to an improper fraction, that is what you get.
4x8+7=39 so fraction is 39/8

What is 34-34

(A) 0

(B) 90

(C) 7

(D) 12

Answers

Answer:

0

Step-by-step explanation:

Answer/Step-by-step explanation:

34 - 34= 0

It basically undoes what is being done and gets rid of its worth.

How do I substitute this?

Answers

You want to isolate one of the variables (x or y) so you can plug it into the other equation. The easiest one is isolating the 2nd equation.

3x² - 16x + 13 - y = 0   Add y on both sides

3x² - 16x + 13 = y

You can use this and plug it into the first equation

y - 12x + 15 = 3x²

(3x² - 16x + 13) - 12x + 15 = 3x²

3x² - 16x + 13 - 12x + 15 = 3x²  Combine like terms

3x² - 28x + 28 = 3x²  Subtract 3x² on both sides

-28x + 28 = 0  Add 28x on both sides

28 = 28x Divide 28 on both sides

1 = x

Now that you know x, you can plug it into either of the equation to find y

3(1)² - 16(1) + 13 - y = 0

3 - 16 + 13 - y = 0

-y = 0 Divide -1 on both sides

y = 0


x = 1, y = 0

Lines b and c are parallel. What is the measure of 2? m2 = 31° m2 = 50° m2 = 120° m2 = 130°

Answers

Answer:

m2 = 50

Step-by-step explanation:

7x+1+18x+4=180

25x+5=180

25x=175

x=7

m2= 7(7)+1 = 50

Answer:

2.  m\angle 2=50^(o)

Step-by-step explanation:  

We have been given that lines b and c are parallel.

Since we know that vertical angles are always congruent. We can see that measure of angle 2 will be equal to (7x+1)^(o) as it is the measure of vertical angle of angle 2.  

We can see that (7x+1)^(o) and (18x+4)^(o) form a linear pair, so they will add up to 180 degrees.  

18x+4+7x+1 =180  

25x+5=180

25x=180-5

25x=175

x=(175)/(25)

x=7

Now let us substitute value of x in the expression (7x+1)^(o) to find the measure of angle 2.  

m\angle 2=7x+1

m\angle 2=7* 7+1

m\angle 2=49+1

m\angle 2=50

Therefore, the measure of angle 2 will be 50 degrees and 2nd option is the correct choice.

Evaluate
3/7 ÷ 1/7
Struggling with this question

Answers

Answer:3

Step-by-step explanation:We first find the reciprocal of the second fraction then the division sign changes into multiplication then you work out.

3/7 divided by 1/7 cancel the divide sign and replace it with a multiplication sign which will be 3/7 x 1/7. 7 will switch place with one therefore it will be 3/7 x 7/1. Cancel the 7s which will be equal to 3/1 the answer is 3

A rectangular prism has a volume of 120 cm to the 3 power. It's length is 5cm and its width is 8cm. What is its height?

Answers

The height is 43200, since 120 to the third power is 1728000, you do 8 x 5 which is 40, then do 1728000 ÷ 40
120^3=1728000 5×8=40 1728000÷40=43200