Answer: 80
Step-by-step explanation:
To solve this,we will use the formula for direct proportion which is:
y = kx
where k = number of cookies made = 24
x = time taken = 1.5 hours
Since y = kx
24 = 1.5k
k = 24/1.5
k = 16
Then, the amount of cookies that can she make in 5 hours will be:
y = kx
y = 16 × 5
y = 80
She can make 8 cookies in 5 hours.