A. Kellie's minute-per-mile pace 9 minutes per mile.
To find this, divide her time (72 minutes) by the number of miles she went (8). 72 divided by 8 is 9 minutes per mile.
B. Ashley ran 4 miles in 34 minutes. First, divide Ashley's time (102 minutes) by the number of miles she went (12). 102 divided by 12 is 8.5 minutes per mile. Then divide 34 by 8.5 to get how far she went in that time. Thus meaning 4 miles.
C. The difference in time between their 4 miles is 2 minutes. Kellie took 36 minutes to go 4 mile (4 miles times 9 minutes is 36 minutes) and Ashley took 34 minutes to go 4 miles (as stated in part B.) Lastly, subtract 34 from 36 to get the 2 minute difference.
I hope this helps!
Answer:1350
Step-by-step explanation:
7500/250=30
30x45=1350
Answer:
![\sf\longmapsto \: x = 20](https://tex.z-dn.net/?f=%5Csf%5Clongmapsto%20%5C%3A%20x%20%3D%2020)
Step-by-step explanation:
![\sf\longmapsto \: 2x = 40](https://tex.z-dn.net/?f=%5Csf%5Clongmapsto%20%5C%3A%202x%20%3D%2040)
![\sf\longmapsto \: x = \frac{40}{2}](https://tex.z-dn.net/?f=%5Csf%5Clongmapsto%20%5C%3A%20x%20%3D%20%20%5Cfrac%7B40%7D%7B2%7D%20)
![\sf\longmapsto \: x = 20](https://tex.z-dn.net/?f=%5Csf%5Clongmapsto%20%5C%3A%20x%20%3D%2020)
Answer:
C
Step-by-step explanation:
You first add them up
(-2x+4y)+(3y-10y)=17-3
3x-2x-10y+4y=14
Simplify and then you get
x-6y=14
Answer:
![T = R](https://tex.z-dn.net/?f=%20T%20%3D%20R)
![925 +0.05 x = 1250 +0.03 x](https://tex.z-dn.net/?f=%20925%20%2B0.05%20x%20%3D%201250%20%2B0.03%20x)
Subtracting 0.03x from both sides we got:
![925 +0.02 x = 1250](https://tex.z-dn.net/?f=%20925%20%2B0.02%20x%20%3D%201250)
And now subtracting 925 from both sides we got:
![0.02 x = 325](https://tex.z-dn.net/?f=%200.02%20x%20%3D%20325)
And dividing by 0.02 both sides we got:
![x = 16250](https://tex.z-dn.net/?f=%20x%20%3D%2016250)
So then we need a total 16250 for the amount of sales in order to have the same amount for Ramon and Teresa at the end of the week
Step-by-step explanation:
For this case we can assume that the total salary for Teresa T is given by:
![T = 925 + 0.05 x](https://tex.z-dn.net/?f=%20T%20%3D%20925%20%2B%200.05%20x)
Where x represent the amount of sales. And similarly for the total salary of Ramon we have:
![R = 1250 +0.03 x](https://tex.z-dn.net/?f=%20R%20%3D%201250%20%2B0.03%20x)
We want to find what amount of sales, x, will result in each of them earning the same amount for the week and we can set up the following equation:
![T = R](https://tex.z-dn.net/?f=%20T%20%3D%20R)
![925 +0.05 x = 1250 +0.03 x](https://tex.z-dn.net/?f=%20925%20%2B0.05%20x%20%3D%201250%20%2B0.03%20x)
Subtracting 0.03x from both sides we got:
![925 +0.02 x = 1250](https://tex.z-dn.net/?f=%20925%20%2B0.02%20x%20%3D%201250)
And now subtracting 925 from both sides we got:
![0.02 x = 325](https://tex.z-dn.net/?f=%200.02%20x%20%3D%20325)
And dividing by 0.02 both sides we got:
![x = 16250](https://tex.z-dn.net/?f=%20x%20%3D%2016250)
So then we need a total 16250 for the amount of sales in order to have the same amount for Ramon and Teresa at the end of the week