Answer:
6
Step-by-step explanation:
Volume of the display case = 216 +8
=224
Length of a side
![= \sqrt[3]{224} = 6.07](https://tex.z-dn.net/?f=%20%3D%20%20%5Csqrt%5B3%5D%7B224%7D%20%20%3D%206.07)
The mean is 27.5. I hope this helps :)
its two ways gather all the relevant information first or throw all the non relevant information out first
How can you solve it if you don't know the equations? :P Just kidding...
n+d=22, so we can say that d=22-n
5n+10d=120, and using d found above in this equation gives you:
5n+10(22-n)=120
5n+220-10n=120
-5n=-100
n=20, and since d=22-n, d=2
So there are two dimes and twenty nickels...
check...
20(5)+2(10)=100+20=120 cents which is $1.20
n+d=22, 20+2=22, 22=22