Answer:
84 inches.
Step-by-step explanation:
Just take 12 and multiply it by 7. You get 84 inches as your final answer.
A. The answer is yes, because the distribution is approximately a bell curve.
Answer:
1) A
2) A
3) C
Step-by-step explanation:
Nickels is 0,05 of dolar - n
dimes is 0,1 o dolar -d
quarters is 0,25 of dolar -q
dimes =2nickels
d=2n
quarters=2dimes
q=2d=4n
12,5=n(0,05)+2n(0,1)+4n(0,25)
12,5=0,05n+0,2n+n
12,5=1,25n
n=10
q=4n=40
There are 40 quarters
She could use the following methods:
8 dimes
16 nickles
2 quarter and 3 dimes
2 quarters and 6 nickles
so, 4 combos
