15 computers for 45 students 45 computers for 135 students are they equal ?

I'm going to assume your talking about Ratios

so yes the ratios are equivalent

Step-by-step explanation:

we have to determine if each pair of ratios or rates is equivalent:

15 computers for 45 students

Ratio of computers to students= 15:45

                                                  = 1:3

45 computers for 135 students

Ratio of computers to students= 45:135

                                                  = 1:3

Hence, The ratio's are equivalent

4 + 5 7/9= 9 7/9

step-by-step explanation:

the answer would be 1 1/72

step-by-step explanation:

you can rewrite the equation by separating the parts and then solving individually:

10-9=1

1/8 - 1/9=

find l c d and then combine:

1 1/72