It took khalid 90 minutes to complete 40 tasks. which answer choice is an equivalent rate? a) 10 tasks in 0.9 minutes b)10 tasks in 2.25 minutes c)10 tasks in 9 minutes d)10 tasks in 22.5 minutes

D) 10 tasks in 22.5 minutes

Step-by-step explanation:

First you have to divide 90 by 40 which equals 2.25

             90 ÷ 40 = 2.25

             2.25 = 1 task

Then you multiply 2.25 by 10 which equals 22.5

             2.25 × 10 = 22.5

Hope this Helps

75 tickets have been sold so far.

step-by-step explanation:

in this question it is clearly mentioned that 45 children's tickets have been sold and this number is 60% of the total tickets sold.

now let's assume the total number of tickets sold be x.

then 60% of x = 45

⇒

⇒ x(.6) = 45

by dividing with .6 on both the sides of the equation

⇒ x = 75

therefore 75 tickets have been sold so far.