9) v - 15 = -27 10) n + 16 = 9

1 answer:

Alik [6]3 years ago

5 0

Answer:

9) v= -12

10) n= -7

Step-by-step explanation:

9) v - 15 = -27

Add 15 from both sides

i.e. v - 15 + 15 = -27 + 15

v = -12

10) n + 16 = 9

Subtract 16 from both sides

i.e. n + 16 - 16 = 9 - 16

n = -7

Hope this helps!!!

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dangina [55]

Answer:

It is decreased by 76 percent.

Step-by-step explanation:

The key skills are percentage and multiplication with percentages.

You first have to get a variable. Let's use the letter o as a variable (o For orginial cost).
Then we have to find out how much it is when o is decreased by 40 percent. 100% (or the whole) - 40% is 60%. Therefore, with a 40 percent decrease, It would be 60% of o, or 0.6o.
Then, if it decreases by 60 percent, the final number would be 100% - 60 % or 40% of 0.6o. This means itbwould be 0.4 × 0.6o which is 0.24o
0.24o means that o is 24 percent of its orginial number, which is 100% - 24% or a 76 percent decrease.

Hope you understood and have a nice day!

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3 years ago

mel-nik [20]

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