$1 = 100 pennies
$10 = 200 nickels
$30 = 300 dimes
$100 = 400 quarters
In total: $141, or Answer C
P r o p o r t i o n s
3:4 = 7
3/198 = 7/x
solve for x using cross multiplying
3/198 = 7/x
198(7) = 3x
1386 = 3x
/3 /3
462 = x
Therefore, there are 462 workers.
Proof:
3/198 = 4/x
198(4) = 3x
792 = 3x
/3 /3
264 = x
264 + 198 = 462.
264 / 4 = 66
198 / 3 = 66
462 / 7 = 66
The length of a rectangle is two more than three times its width which means 2+3w, Next substitute 2+3w to l and substitute p for 92 and keep w as w, next multiply 2 to 2+3w, then use inverse to solve.
Answer: 11
