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fomenos
3 years ago
12

I need help!! thnaks

Mathematics
1 answer:
liraira [26]3 years ago
3 0

Answer:

7a + 2b

Step-by-step explanation:

Given

4a + 3b + 3a - b ← collect like terms

4a + 3a + 3b - b

= 7a + 2b

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Evaluate 30 - 12 / 3 * 2
Ivenika [448]
Answer:22

step by step:
so we have PE(MD)(AS)
(for multiplication and division it depends on left to right, same for addition and subtraction)

this could be read as
30 - [(12/3)*2]

first you would do 12/3 which is 4
then you do 4*2 which is 8
last you do 30-8 which is 22

hope that helps :)
3 0
3 years ago
The highlighted regions are bases. What is the lateral surface area of
Natali5045456 [20]

Answer:

Option "C" is the correct answer to the following question.

The lateral surface area of  cube = 144  Ft²

Step-by-step explanation:

Given:

Side of cube = 6 Ft

Find:

The lateral surface area of  cube =?

Computation:

⇒ The lateral surface area of  cube = 4a²

⇒ The lateral surface area of  cube = 4 × 6 × 6

⇒ The lateral surface area of  cube = 144  Ft²

All sides of the cubes are equal. The lateral surface area of  cube is also known as the curved surface area of the cube.

6 0
3 years ago
Serena’s father tipped a taxi driver $5 for a $25 ride. What was the percent of the tip that he paid?
Genrish500 [490]
5/25 x 100= 20....................
4 0
3 years ago
Read 2 more answers
Use the operation signs +,-, x, and ⌯ once each in the expression below to make the number sentence true. Why does your answer m
Zepler [3.9K]

Answer:

6 * (3 - 1) + 5 \div 1 = 17

Step-by-step explanation:

Given

6\ [\ ]\ (\ 3\ [\ ]\ 1\ )\ [\ ]\ 5\ [\ ]\ 1\ =\ 17

Required

Fill in the box with +,-, x, and ⌯ (once each)

This question is solved using trial by error approach.

After some tests, the solution that matches the equation is:

6 * (3 - 1) + 5 \div 1 = 17

6 0
3 years ago
Two coins are flipped. You win $3 if either two heads or two tails turn up; you lose $4 if a head and a rail turn up. What is th
Lyrx [107]

Answer:

Step-by-step explanation:

It's too bad about this problem. It's a fair game if you get paid the same amount that you have to pay if you lose.

You win 2 ways

  • H - H
  • T - T
  • Probability 1/2

You lose 2 ways.

  • H - T
  • T - H
  • Probability 1/2

Expectation

E = 1/2 * 3 - 1/2 * 4

E = 1.5 - 2

E = -0.5

Which means that you should expect to lose 0.5 dollars every time you play this dreadful game.

4 0
3 years ago
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