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2 years ago

Please help and tell me why u got that answer, I will mark brainliest

Mathematics

1 answer:

gregori [183]2 years ago

4 0

The answer is C

i think so

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5x + 7 - 2(-8x -1) = 7(x - 1)

love history [14]

Step-by-step explanation:

$5x + 7 - 2( - 8x - 1) = 7(x - 1) \\ 5x + 7 + 16x + 2 = 7x - 7 \\ collecting \: like \: \: terms \: \\ 5x + 16x - 7x = - 7 - 2 - 7 \\ 14x = - 16 \\ divide \: both \: side \: by \: 14 \\ \frac{14x}{14} = \frac{ - 16}{14} \\ x = - \frac{ 8}{7}$

8 0

3 years ago

Could anyone find this?

lina2011 [118]

Answer:

Step-by-step explanation:

Since the squares have areas of 32u^2. The side lengths are

$s=\sqrt{32}\\ \\ \text{By the Pythagorean Theorem}\\ \\ x^2=s^2+s^2\\ \\ x^2=32+32\\ \\ x^2=64\\ \\ x=\sqrt{64}\\ \\ x=8$

8 0

2 years ago

Which method do you prefer to use to find sums- count by tens and ones, use compatible numbers, or use friendly numbers and adju

Usimov [2.4K]

I prefer to use compatible numbers because by using this method it is easier to make a sum mentally. This is true because compatible numbers are close in value to the actual numbers. For a better understanding, let's take an example:

Suppose you have two numbers, namely 640 and 40. These two numbers are compatible for division because:

64 ÷ 4 = 16

So, we have used mental arithmetic to solve a more complex problem.

7 0

3 years ago

Read 2 more answers

Type an integer or decimal 0.16(y-5)+0.12y=0.20y-0.9

Over [174]

Answer:

16y

Step-by-step explanation:

4 0

3 years ago

Hey Can Somebody Help Me Solve For b? <br><br> 3(b−4)+5b=44

Mice21 [21]

Answer:

b = 7

Step-by-step explanation:

3(b−4) + 5b = 44

3b - 12 + 5b = 44

8b = 44 + 12

8b = 56

b = 56/8

b = 7

5 0

3 years ago

Read 2 more answers