Respuesta :
Given maria has [tex]\\\$ 2.43[/tex] in the pennies & quarters.
she has twice as many pennies as quarters.
find out the coins
let us assume the quarters are x
than the pennies are 2x.
Formula
value of the pennies + value of the quarters = total value of coins
1 quarters =$ 0.25
1 pennies = $0.01
Thus
0.25x + 0.01 (2x) = 2.43
0.27 x = 2.43
x = 9
2x = 18
i.e the number of quarters are 9 and the number of pennies are 18.
Hence proved
Answer: 9 quarters and 18 pennies
Step-by-step explanation:
0.25q+0.01(2q)=2.43
Multiply. 0.25q+0.02q=2.43
Combine like terms. 0.27q=2.43
Divide by 0.27. q=9 quarters
The number of pennies is 2q.
2q = 2⋅9 = 18 pennies
