Answer: Mark up percent = 20%
Step-by-step explanation:
Given: Cost price of each T-shirt = $5.00
Amount required = $450
Total students = 75
Market price for each T-shirt to raise the required amount = (Amount required ) ÷ 75
= $450 ÷ 75
= $ 6
Mark up percent = ![\dfrac{\text{Market price - Cost price}}{\text{Cost price}}\times100](https://tex.z-dn.net/?f=%5Cdfrac%7B%5Ctext%7BMarket%20price%20-%20Cost%20price%7D%7D%7B%5Ctext%7BCost%20price%7D%7D%5Ctimes100)
![=\dfrac{6-5}{5}\times100\\\\=20\%](https://tex.z-dn.net/?f=%3D%5Cdfrac%7B6-5%7D%7B5%7D%5Ctimes100%5C%5C%5C%5C%3D20%5C%25)
Hence, Mark up percent = 20%
Answer:
Slope = rise / run
= -12 / 1500 (It's -12 and not 12 because a drop means it's decreasing)
= -0.008
Let
![x](https://tex.z-dn.net/?f=x)
be the amount of time it takes to perform an arm routine and
![y](https://tex.z-dn.net/?f=y)
be the amount of time it takes to perform an abdominal routine. We see:
![4x+y=70](https://tex.z-dn.net/?f=4x%2By%3D70)
![4x+2y=100](https://tex.z-dn.net/?f=4x%2B2y%3D100)
Subtracting the second equation from the first gives
![y=30](https://tex.z-dn.net/?f=y%3D30)
. Substituting gives
![4x+30=70](https://tex.z-dn.net/?f=4x%2B30%3D70)
, so
![4x=40](https://tex.z-dn.net/?f=4x%3D40)
and
![x=10](https://tex.z-dn.net/?f=x%3D10)
.
Thus, an arm routine takes ten minutes and an abdominal routine takes thirty minutes.
Answer: .045
Step-by-step explanation:.75=.750 so, 750-705=.045
Hope this helps!
Answer:
x= (y-5)/2
Step-by-step explanation:
Isolate the x variable.
y= 2x +5
Subtract 5 from both sides.
y-5=2x
Divide both sides by 2.
(y-5)/2= x