Answer:
![\frac{31}{70}\ lb](https://tex.z-dn.net/?f=%5Cfrac%7B31%7D%7B70%7D%5C%20lb)
Step-by-step explanation:
Given:
They used 1/2 lb flour to make the bread.
They used 1/7 lb less flour to make bread than to make cookies
So they used flour to make the cookies = ![\frac{1}{2}+\frac{1}{7}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%2B%5Cfrac%7B1%7D%7B7%7D)
= ![\frac{7+2}{14}](https://tex.z-dn.net/?f=%5Cfrac%7B7%2B2%7D%7B14%7D)
= ![\frac{9}{14}\ lb](https://tex.z-dn.net/?f=%5Cfrac%7B9%7D%7B14%7D%5C%20lb)
Therefore they used
flour to make the cookies.
She used 1/5 lb more to make cookies than to make brownies.
So they used cookies to make the brownies = ![\frac{9}{14}-\frac{1}{5}](https://tex.z-dn.net/?f=%5Cfrac%7B9%7D%7B14%7D-%5Cfrac%7B1%7D%7B5%7D)
= ![\frac{5\times 9 - 14}{70}](https://tex.z-dn.net/?f=%5Cfrac%7B5%5Ctimes%209%20-%2014%7D%7B70%7D)
= ![\frac{45 - 14}{70}](https://tex.z-dn.net/?f=%5Cfrac%7B45%20-%2014%7D%7B70%7D)
= ![\frac{31}{70}\ lb](https://tex.z-dn.net/?f=%5Cfrac%7B31%7D%7B70%7D%5C%20lb)
Therefore they used
flour to make the brownies.
1) To find y, you should use the pythagorean theorem
30^2 = 24^2 + y^2
So y = 18
Answer: 2.96% rounded
Step-by-step explanation: 10/30) x (9/29) x (8/28) = 720 / 24,360 = 6/203 = 2.96%
Answer:
Prob = 1.96%
Step-by-step explanation:
p = pennies
t = total
total Prob = Prob1*Prob2
P1 = # pennies/total
P2 = new #/new total
total Prob = (p/t)*((p-1)/(t-1))
Answer:
$87
Step-by-step explanation:
The friends money shouldn't be involved.