Answer:
The expression is not equivalent to other three is 9(n-9) .
Option (B) is correct .
Step-by-step explanation:
Take first expression
= -9 -7n + 16n
= 9n-9
Take second expression
= 9(n-9)
= 9 × n - 9 × 9
= 9n - 81
Take third expression
= n-9+8n
= 9n-9
Take fourth expression
= 9n-9
Therefore expression is not equivalent to other three is 9(n-9) .
Option (B) is correct .
Answer:
15
Step-by-step explanation:
Given:
ratio of stickers to erasers: 3 to 8
She has 12 stickers.
3:8 = 12:x
3x = 8*12
3x = 96
x = 96/3
x = 32 erasers.
Mrs. Robbins has 32 erasers.
STEP-BY-STEP SOLUTION:
Let's solve this problem step-by-step.
As posters are generally rectangular in shape, we will establish the formula for the area of a rectangle which we will be using as displayed below:
Area = height × width
Now let's find the area of the postwr using the above formula.
Height = 2 feet
Width = 0.7 feet
Area = height × width
Area = 2 × 0.7
Area = 1.4 square feet
ANSWER:
Therefore, the answer is:
The area of the poster is 1.4 square feet.
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It would take the second computer 75 seconds because:
