Answer:
Penelope worked 5 hours.
Sarah worked 10 hours.
Explanation:
Let's start by setting up some equations to represent the given information:
Let x be the number of hours Penelope worked.
Then Sarah worked 2x hours.
The total number of shirts they ironed is given by:
30(2x) + 35x = 475
Simplifying and solving for x:
60x + 35x = 475
95x = 475
x = 5
So Penelope worked 5 hours.
And Sarah worked 2x = 2(5) = 10 hours.
p = 5
So Penelope worked 5 hours.
And since Sarah worked twice as many hours, she worked:
2p = 2(5) = 10
So Sarah worked 10 hours.