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Leni [432]
3 years ago
5

The difference of twice a number and 2 is at least −26.

Mathematics
2 answers:
natita [175]3 years ago
8 0

2x - 2 \geqslant  - 26
777dan777 [17]3 years ago
5 0

Answer:

2 (c-2) ≤ -26

Step-by-step explanation:

Let's look at the phrase "Twice the difference of a number and 8".

We're using c for the unknown number.

So "the difference of a number and 8" is written −c8.  

Taking twice this quantity, we get 2−c8.

The symbol for "is at most" is ≤. We get the following:

2 (c-2) ≤ -26

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2 years ago
-2x + y=9<br> -4x - y=9 <br> What is the answer
Dmitry_Shevchenko [17]

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3 0
3 years ago
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A rectangular driveway has an area of 880 square feet and a perimeter of 128 feet. What are the dimensions of the driveway?
mamaluj [8]

Answer:

Dimensions are 20 X 44 feet

Step-by-step explanation:

First we need to build two equations:

For area X times Y = 880

For Perimeter 2x + 2y = 128

Now we need to solve one so we can substitute it into the other:

2x + 2y = 128 becomes

2x = 128 - 2y and then

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(64 - y)y = 880

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factor out the negative

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Factor:

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y-20 = 0 and y - 44 = 0

y = 20 and y = 44

Plugging these in two both of our formulas works

20 X 44 = 880 for area

2(20) + 2 (44) = 128 for perimeter

8 0
3 years ago
Word problem for 5(p+2)   p= the number of points scored
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