D=number of dimes
q=number of quarters
let's count everything in cents
dimes are worth 10 cents
quarters are worth 25 cents
10d+25q=700
divide both sides by 5
2d+5q=140
he has 7 more quarters than dimes
q=7+d
subsitute 7+d for q in other equation
2d+5q=140
2d+5(7+d)=140
2d+35+5d=140
7d+35=140
minus 35 both sides
7d=105
divide both sides by 7
d=15
sub back
q=7+d
q=7+15
q=22
22 quarters and 15 dimes
Answer:
{(0,0),(0,1),(1,2),(1,3)}
Step-by-step explanation:
If this was a function it would be (0,0) ,(1,1), (2,2) ,(3,3) and so on
Answer:
-27
Step-by-step explanation:
-3^3 (the number after ^ is the exponent)
-3 x -3 x -3
-3 x -3 = 9 (multiplying two negatives results in a positive)
9 x -3 = -27
5x/3=35
5x = 35*3=105
x= 105/5 = 21
double check 5 x 21 = 105
105/3 = 35
IF A MOD DOESN'T DELETE THIS
8 is the GCF, so that means it's 8(3+5) = 8(8) = 64