SOLUTION: 1/4(8y+4)-17=-1/2(4y-8) Solve It has been determined that at the age of 10, a girl has reached 84.4%of her final adult height. Dana is 4ft 8in. at the age of 10. What will her fin

Question 228342: 1/4(8y+4)-17=-1/2(4y-8) Solve
It has been determined that at the age of 10, a girl has reached 84.4%of her final adult height. Dana is 4ft 8in. at the age of 10. What will her final adult height be????
A store keeper goes to the bank to get $10.00 worth of change. She requests twice as many quarters as half dollars, twice as many dimes as quarters, three times as many nickels as dimes, and no pennies or dollars. How many of each coin did the storekeeper get?
Please help me ! Also show your work! So I can ! Thank You
Heather
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
1/4(8y+4)-17=-1/2(4y-8) Solve

Multiply equation by 4 to get rid of the denominators, results
8y + 4 - 4(17) = -2(4y - 8)
:
8y + 4 - 68 = -8y + 16
:
8y - 64 = 8y + 16
:
8y + 8y = 16 + 64
:
16y = 80
y =
y = 5
Check solution in original equation
:
;
It has been determined that at the age of 10, a girl has reached 84.4%of her
final adult height. Dana is 4ft 8in. at the age of 10.
What will her final adult height be????
:
Convert 4' 8" to 56 inches
:
Let x = her final adult age
:
.844x = 56
x =
x = 66.35 inches which is 5 ft 6.35 inches
:
:
A store keeper goes to the bank to get $10.00 worth of change.
She requests twice as many quarters as half dollars, twice as many dimes as quarters,
three times as many nickels as dimes, and no pennies or dollars.
How many of each coin did the storekeeper get?
:
Write an equation for each statement, get all coins in terms of q
:
"twice as many quarters as half dollars,"
q = 2h
h = .5q
:
"twice as many dimes as quarters, "
d = 2q
:
"three times as many nickels as dimes,"
n = 3d
Replace d with 2q
n = 3(2q)
n = 6q
:
"$10.00 worth of change."
.05(6q) + .10(2q) + .25q + .50(.5q) = 10.00
.30q + .20q + .25q + .25q = 10.00
1.0q = 10
q = 10 quarters,
:
You should be able to find the no. of the other coins
Check the solutions in the total$ equation
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