3x-4
Think of times = multiplication
Less than = x-y
Answer:
1,3,7,9,21,63,
Step-by-step explanation:
63*1=63
21*3=63
9*7=63
7*9=63
3*21=63
1*63=63
N=8+d
10d+5n=145
divide 2nd equaiton by 5 to make nicer and easier
2d+n=29
subsitute 8+d for n in 2nd equation
2d+8+d=29
3d+8=29
minus 8 both sides
3d=21
divide by 3
d=7
sub back
n=8+d
n=8+7
n=15
15 nickles and 7 dimes
It means you have to find what number equals 36 but multiplying with 2