Question

Hannah has a jar filled with 150 coins made up of quarters and nickels. The total value of the coins is $28.30

How many quarters and how many nickels are in the jar?
(Points : 1)
46 quarters; 104 nickels
75 quarters; 75 nickels
104 quarters; 46 nickels
95 quarters; 55 nickels

Answer 1

@JReed231

Answer 2

i think 75 quarters and on 75 nickels

Answer 3

c

Answer 4

Amy mixes 12 liters of 16% acid solution with a 40% acid solution which results in 32% acid solution.

If x represents the number of liters of 40% solution used, which equation can be used to find the number of liters of 40% acid solution in the mixture?
(Points : 1)
1.92 + 0.32x = 0.4(x + 12)
3.84 + 0.4x = 0.16(x + 12)
4.8 + 0.32x = 0.4(x + 12)
1.92 + 0.4x = 0.32(x + 12)

Answer 5

thanks by the way

Answer 6

anytime

Answer 7

Amy mixes 12 liters of 16% acid solution with a 40% acid solution which results in 32% acid solution.

If x represents the number of liters of 40% solution used, which equation can be used to find the number of liters of 40% acid solution in the mixture?
(Points : 1)
1.92 + 0.32x = 0.4(x + 12)
3.84 + 0.4x = 0.16(x + 12)
4.8 + 0.32x = 0.4(x + 12)
1.92 + 0.4x = 0.32(x + 12)