Let p = number of pennies.
Let n = number of nickels.
We are given that n= 2p and the total value is $8.80.
We know that a penny = $0.01 and that a nickel = $0.05.
So $0.01p + $0.05n = $8.80.
Substitute 2p for n:
$0.01p + $0.05*2p = $8.80
$0.01p + $0.10p = $8.80
$0.11p = $8.80
p = 80
So n = 2p = 2*80 = 160
Thus there are 80 pennies ($0.8) and 160 nickels ($8.00). The value of all the coins is $8.80.
Answer:
Step-by-step explanation:
He bought 12 cans of soda you get that by multiplying 12 by 0.90 if you divide 4.50 by 5 you get 0,90 that is you multiply 12 by 0.90 and you get 10.80 <span />
Answer:
No solutions
Step-by-step explanation:
Open parenthesis:
4x-28>-26+4x
Move all like terms to one side:
-28-26>4x-4x
-54>0
-54 isn't greater than 0, so that means that there are no solutions.
:)
Answer:
A
Step-by-step explanation:
The area in step one is
a²+b² but that does not equal (a+b)²
