3 years ago

it was -11 degrees. She checked again later and it was -2 degrees . Express the change in tempature as a integer Help me !

Mathematics

2 answers:

Anon25 [30]3 years ago

8 0

Answer:-9

Step-by-step explanation:

zzz [600]3 years ago

4 0

Answer:

There was a +9 change in temperature

Step-by-step explanation:

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the lenght of a rectangle is 2 cm less than 7 times the width. the perimeter is 60 cm . find the width and lenght

vampirchik [111]

First, you want to establish your equations.

L=7W-2
P=60

This is what we already know. To find the width, we have to plug in what we know into P=2(L+W), our equation to find perimeter.

60=2(7W-2+W)

Now that we only have 1 variable, we can solve.

First, distribute the 2.
60=14W-4+2W

Next, combine like terms.

60=16W-4

Then, add four to both sides.

64=16W

Lastly, divide both sides by 16

W=4

To find the length, we plug in our width.

7W-2

7(4)-2

28-2

L=26

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3 years ago

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ser-zykov [4K]

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3 years ago

If the office furniture costs $9,900 and it was three times as expensive as the office computer, what was the cost of the comput

Readme [11.4K]

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Step-by-step explanation:

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