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DENIUS [597]
3 years ago
14

Find (-8x+2)-(-5x+7)

Mathematics
2 answers:
ANTONII [103]3 years ago
7 0

Answer:

-3x -5

Step-by-step explanation:

You would do -8x + 2 + 5x - 7. Then add 2 and 7 to get 5. After that you do -8x -5 + 5x. Then -8x - 5 +5x to get -3x - 5 because you do 8-5 to get 3.

dezoksy [38]3 years ago
3 0

Answer: -3x-5

Step-by-step explanation:

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What are the constants in the expression 12+x-3.7-8y+1/3
siniylev [52]
A constant in an algebraic expression is defined as a term that does not change during the expression, so, in other words, a term that does not have a variable in it. so the constants are

12
-3.7
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7 0
3 years ago
The bike store marks up the wholesale cost of all of the bikes they sell by 30%. Andre wants to buy a bike that has a price tag
Step2247 [10]

Answer:

$96.15

Step-by-step explanation:

Given data

markup = 30%

cost price= $125

let the cost price before markup be x

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125-0.3x= x

125= x+0.3x

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divide both sides by 1.3

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x= $96.15

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6 0
2 years ago
You made a deal with Ms.Williams to read 100 pages every night. You know that it takes you 32 minutes to read 16 pages. How long
AnnyKZ [126]
Put the problem into a proportion to make it easier to solve.

32        x
      =
16       100

You can use cross products to simplify this proportion.  Multiply 32 by 100, and set that number equal to 16 *x.  

Your equation should now look like this
3200=16x

You are trying to get the variable alone on one side, so you should divide both sides by 16.

If this is performed correctly, then your final answer should be 

x=200.

It will take you 200 minutes (3 hours 20 mins) to read the pages that you promised Ms. Williams

5 0
3 years ago
Which number is distributed in this expression 5(3 + 2 + 8)? *
Agata [3.3K]

Answer:

c.5

Step-by-step explanation:

5(3 + 2 + 8)

The number outside of the parenthesis is distributed to the numbers inside of the parenthesis

5 0
3 years ago
Read 2 more answers
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sp2606 [1]
21 blocks, because if he uses 38 you subtract 17 and you get 21

5 0
3 years ago
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