Answer:
There are 23 dimes in the box
Step-by-step explanation:
Let nickels=n
Let dimes=(35-n)
Equation: 0.05n+0.10(35-n)=2.90
Multiply both sides by 100: 5n+10(35-n)=290
-5n+350=290
-5n=-60
n=12
35-12=23
Therefore, there are 23 dimes in the box
Answer:
251.2
Step-by-step explanation:
V=πr²h
3.14×4²×5
Make a ratio, then cross multiply.
4/30=x/48
30x=4x48
30x=192
x=6.4
Pretty sure it’s y=(x-5)^2+7
