Answer:
- honeydew: $2.00 per kg
- watermelon: $0.50 per kg
Step-by-step explanation:
The cost per kilogram is found by dividing cost by kilograms:
honeydew:
($4)/(2 kg) = $2/kg
Honeydew costs $2 per kilogram.
__
watermelon:
Let w represent the cost per kg of watermelon. The total value of the second purchase was ...
(1 kg honeydew)×($2/kg) +(2 kg watermelon)×(w) = $3
$2 +2w = $3
2w = $1 . . . . . . . . . . . . subtract $2
w = $1/2 = $0.50 . . . . divide by 2
The watermelon cost $0.50 per kilogram.
