Answer: 1.5s+20
Step-by-step explanation:
Answer:
6 quarters, 3 dimes, and 12 nickles
Step-by-step explanation:
Let's say Q is the number of quarters, D is the number of dimes, and N is the number of nickles.
From the information in the problem, we can write three equations:
25Q + 10D + 5N = 240
N = 2Q
Q = 2D
Solve the system of equations using substitution.
25(2D) + 10D + 5(2Q) = 240
50D + 10D + 10Q = 240
60D + 10(2D) = 240
60D + 20D = 240
80D = 240
D = 3
Q = 6
N = 12
There are 6 quarters, 3 dimes, and 12 nickles.
6/7 times 6/7 equals 36/49
y = 4x + 1
check
for x = 1 → y = 4(1) + 1 = 4 + 1 = 5 OK
for x = 4 → y = 4(4) + 1 = 16 + 1 = 17 OK
for x = 5 → y = 4(5) + 1 = 20 + 1 = 21 OK
for x = 7 → y = 4(7) + 1 = 28 + 1 = 29 OK
for x = 9 → y= 4(9) + 1 = 36 + 1 = 37 OK
3 * -4
ignore
Answer too short
