Answer:
9 nickels
Step-by-step explanation:
Set the number of pennies as x. The number of nickels would be 31 - x.
The pennies are worth x cents and the nickels are worth 5 * (31 - x), or 155-5x.
We are given that he has 67 cents, so:
x + 155 - 5x = 67
Solve.
-4x = 67 - 155 = -88
x = 22
Nickels are 31 - x, so the number of nickels he has is 9.
I hope this helps!
Answer:
-7a+6b-11
Step-by-step explanation:
-2a+5b-7-5a+b-4
Taking like term together
= -2a-5a+5b+b-7-4
= -7a+6b+11
Answer:
x=14
Step-by-step explanation:
there is a picture to help you foe the explanation
Answer:
that's a pentagon
Step-by-step explanation:
it just is yo
Answer:
every 5 seconds the volume is increasing
Step-by-step explanation:
take the volume of the cube which is 8 divide that by 125 to get the number neccesary then take that number which should be 15 divide by 3 as that is the going rate of increase, you should approx.5 seconds