So, to know the average number of boxes packed per hour, we can do a rule of three: If in 11/6 hours they packed 22 boxes, in 1 hours they packed X boxes.

22 boxes -> 11/6 hours

X boxes -> 1 hour

22/X = 11/6

X = 6 * 22 / 11 = 12

So, they packed an average of 12 boxes per hour.

6 0

3 years ago

Scarlett is working two summer jobs, making $13 per hour landscaping and making $8 per hour clearing tables. In a given week, sh

dolphi86 [110]

Answer:

The graph in the attached figure

Step-by-step explanation:

Let

x ----> the number of hours landscaping

y ----> the number of hours clearing tables

we know that

she can work a maximum of 12 total

$x+y\leq 12$ ----> inequality A

she must earn a minimum of $120

$13x+8y\geq 120$ ----> inequality B

Solve the system of inequalities by graphing

The solution is the triangular shaded area

see the attached figure

Remember that

If a ordered pair is a solution of the system of inequalities, then the ordered pair must satisfy both inequalities (the ordered pair lie in the shaded area of the solution set)

One possible solution is the point (10,1)

The point (10,1) lie in the shaded area

That means

The number of hours landscaping is 10 and the number of hours clearing tables is 1

5 0

3 years ago