Answer:
1. x = -7
2. y = -1
Step-by-step explanation:
1.
-3x - 5 = 16 add 5 to both sides
-3x = 21 divide -3 to both sides
x = -7
2.
-4(y-2) = 12 distribute -4
-4y + 8 = 12 subtract 8 from both sides
-4y = 4 divide -4 to both sides
y = -1
SECOND PAGE
1. x = 9
2. y = -3
One can take the price of the item before the discount is applied and subtract that from the percentage off and get the cost of the item.
I find this is the most effective way.
another method could be if one turned the percentage into a decimal it could be subtracted from the cost of the item.
6 out of 10 or 3 out of 5
.30 times the number in question will equal your answer.
Answer:
The answer is 82.20.
Step-by-step explanation:
First you 68.50 x .20. Which equals 13.7. Then you add that to the total of the dinner. That is 68.50 + 13.7 = 82.20
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