Please give me a hand

Mathematics

2 answers:

nlexa [21]3 years ago

5 0

Answer:

x=5? im not really sure what the question is its all fuzzy

Step-by-step explanation:

vlada-n [284]3 years ago

5 0

Your answer is x = 9.

To solve this equation we just need to expand the brackets and then rearrange the equation to have x on one side and the numbers on the other:

2(x + 5) - 7 = 3(x - 2)

2x + 10 - 7 = 3x - 6

2x + 3 = 3x - 6

- 2x

3 = x - 6

+ 6

9 = x

I hope this helps!

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I 8. Classify 8 as a perfect square, a perfect cube, both, or neither.

Murljashka [212]

Answer:

It's a perfect cube, but not a perfect square.

Step-by-step explanation:

2^3 = 8, meaning 8 is a perfect cube. But since 2^2 = 4 and 3^2 = 9, and 8 is in between, 8 is not a perfect square.

I hope this helped.

7 0

3 years ago

Justin is on a road trip. Over the past two days, he’s driven a total distance of 504 miles at an average speed of 56 miles/hour

irakobra [83]

Recall d = rt, distance = rate * time.

now, he has a speed rate of 56 mph for a distance of 504

$\bf d=rt\implies 504=56t\implies \cfrac{504}{56}=t\implies \stackrel{hours}{9}=t$

so, at that speed the whole driving time is 9 hours then. Ok, he drove 2 hours today, that means he drove 7 yesterday, 9 - 2.

how many miles is it for 7 hours at 56mph? d = rt ---> d = 56 * 7

that many miles he drove yesterday.

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3 years ago

What is the slope of the line

cupoosta [38]

Answer:

I believe the slope would be -2

Step-by-step explanation:

The line goes down 2 boxes and over 1 box before it intersects with another point. Knowing slope = $\frac{rise}{run}$ , we know that slope = $\frac{-2}{1}$ which is equal to -2.