Firstly, we’d have to find the total price paid for erasers by subtracting the overall price from the amount she paid in pencils.
$4.25 - $1.75 = $2.50
From there, we can use the amount per eraser to find out how many erasers she bought. Since she spent $2.50 in erasers, we can multiply to find our missing number.
$0.25 x 10 = $2.50
Therefore, Stefanie bought 10 erasers.
Hope this helps! :)
Y=0x + -5 should be the correct answer
In this item, it is assumed that we are to determine the speed at which the car will have the best gas mileage. This can be done by deriving the equation and equating it to zero.
M(s) = -1/28s² + 3s - 31
Deriving,
dM(s) = (-1/28)(2s) + 3 = 0
s = 42
Hence, the speed at which the best mileage is achieved is mi/h.
Answer:
Sum is - 5n² -8n + 4.
Step-by-step explanation:
Given : (3n² – 5n + 6) + (–8n²– 3n – 2) .
To find : Sum .
Solution : We have (3n² – 5n + 6) + (–8n²– 3n – 2) .
Combine like terms :
(3n² - 8n²– 5n - 3n + 6 - 2).
- 5n² -8n + 4.
Therefore, Sum is - 5n² -8n + 4.
Hello,
As √88=9,3808315196468591091312602270889....
==>9<√88<10
Answer C
