Answer:
x=9
Step-by-step explanation:
2(9)+3
18+3=21
3(9)-6
27-6=21
when you plug in 9 for the x variable you will get the same end value
Answer:
Step-by-step explanation:
let the number of dimes=x
and number of quarters=y
x=2y
0.10 x+0.25 y=2.25
or 10x+25y=225
divide by 5
2x+5y=45
2 ×2y+5y=45
4y+5y=45
9y=45
y=45/9=5
x=2y=2×5=10
Hence dimes=10
quarters=5
Answer:
To find the price of one t-shirt, we can do 40.80 / 8 = $5.10 per shirt. Therefore, the price of 5 shirts is 5.10 * 5 = $25.50.
Answer:
6 to the power of 2 or 6 squared
11.72×60=703.2
9.66×60=579.6
((9.66÷11.72)−1)×100=−17.6%
