The following week they gave another exam. Tina knows she can grade 60 exams in 2 hours and Renee can grade 60 exams in 1.5 hours. How long will it take for them to grade all 60 exams
working together?

1 1/6 hours

Step-by-step explanation:

Add them together 2 + 1.5 = 3.5

Multiply them together 2 x 1.5 = 3

Take first number and divide by 2nd 3.5 / 3 = 7/6 or 1 1/6 hours

my answer is$ 12

step-by-step explanation:

because 15 -2=12

the number of possible outcomes that do not show a 1 on the first spinner and show the number 4 on the second spinner is 2.

spinner 1 spinner 2

1                     1

1                     2

1                     3

1                     4

2                   1

2                   2

2                   3

2                   4   = not 1, and 4

3                   1

3                   2

3                   3

3                   4 = not 1, and 4

only 2 outcomes have passed the given condition.

step-by-step explanation: