Prisms is the answer for the question
The perimeter = 2 * (3*y - 5) + 2*2*y = 6*y - 10 + 4*y = 10y - 10
100% + 30% = 130%
130% x = 520 Change a % to a decimal
(130/100) x = 520
1.3 x = 520 Divide by 1.3
x =520 / 1.3
x = 400
So the original cost of the item was 400 dollars.
Answer:
The number is -7
Step-by-step explanation:
Solve in backward to find answer.
The outcome is -4.
It was multiplied by 4. So, divide the -4 by 4.
-4 ÷ 4 = -1
Then, it was divided by 5. So, multiply -1 by 5.
-1 × 5 = -5
Finally, it was added by 2. So, subtract -5 by 2.
-5 - 2 = -7
Answer:
Look at the relationship.
2.7 is 30 times larger than 0.09 (2.7 / 0.09 = 30)
So the ratio is 0.09:2.7 = 1 :30