Debi had $1.55 in a collection of dimes and nickels. The number of nickels is seven more than the number of dimes. Find the numb
er of each type of coin.
There are ___ dimes.
There are ___ nickels.
1 answer:
N =D+7
0.10D +0.05(D+7) = 1.55
0.15D +0.35 = 1.55
0.15D=1.20
D=120/0.15 = 8
8x0.10 = 0.80
1.55-0.80= 0.75
8+7=15 * 0.05 = 0.75
8 dimes and 15 nickels
You might be interested in
Answer:
B(6 , -11)
Step-by-step explanation:
(x-2 , y+3) = (4 , -8)
Compare the x & y co ordinates
x - 2 = 4 ; y + 3 = -8
x = 4 +2 ; y = -8 - 3
x = 6 ; y = -11
B(6 , -11)
Answer: -x+8
explanation: it’s in its simplest form because it cannot be factored
Answer: (-2, 2) and (4, 8)
There are two solutions because the two functions cross each other twice.
It has already given you the answer.
