Ineed . i will mark you as brainliest. ! lena the trainer has two solo workout plans that she offers her clients: plan a and plan b. each client does either one or the other (not both). on wednesday there were 12 clients who did plan a and 2 who did plan b. on thursday there were 3 clients who did plan a and 5 who did plan b. lena trained her wednesday clients for a total of 19 hours and her thursday clients for a total of 7 hours. how long does each of the workout plans last?

Plan A lasts for 1.5 hours

Plan B lasts for 0.5 hours

Step-by-step explanation:

Lena the trainer has two solo workout plans that she offers her clients: Plan A and Plan B

Let x the number of hours that plan A lasts( the time a client takes to complete workout)

Let y = the number of hours that plan B lasts. ( the time a client takes to complete workout)

On Wednesday, there were 12 clients who did Plan A and 2 clients who did Plan B.

This means 12 clients trained for 12x hours under plan A and 2 clients trained for 2y hours under plan B.

On Thursday, there were 3 clients who did Plan A and 5 clients who did Plan B.

This means 3 clients trained for 3x hours under plan A and 5 clients trained for 5y hours under plan B.

Lena trained her Wednesday clients for a total of 19 hours and her Thursday clients for a total of 7 hours.

This means

12x + 2y = 19 - - - - - - - - - - -1

3x + 5y = 7 - - - - - - - - - - -2

Using elimination method,

Multiply equation 1 by 3 and equation 2 by 12

36x + 6y = 57

36x +60y = 84

Subtracting,

54y = 27

y = 27/54 = 0.5 hours per client

Put y = 0.5 in 3x + 5y = 7

3x +5×0.5 = 7

3x + 2.5 = 7

3x = 7-2.5 = 4.5

x = 4.5/3 = 1.5 hours per client

6,250

step-by-step explanation:

to get the area, multiply 360 by 160.(57,600)

to find out how many bags of fertilizer it will take, first figure out how many square feet one bag can hold. divide 1000 by 8(125) to get the unit rate(how many square feet one pound of fertilizer can hold)and multiply it by 50(6250). if i haven't made a mistake, that is the answer.

4

step-by-step explanation:

im pretty sure it's 4 beacsue 8/2 equals 4