Answer:
Step-by-step explanation:
x= money earned per hour working as a cashier.
y=money earned per hour working delivering newspapers.
We propose the following system of equations:
5x + 4y =77
6x + 3y=78
We solve the system by reduction method:
-6*(5x+4y=77) ⇒ -30x-24y=-462
5*(6x+3y=78)⇒ 30x+15y=390
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-9y=-72 ⇒ y=-72 /-9=8
Now, we get the value of "x" replacing the value of "y" by "8" in any part of the equation above.
5x + 4(8)=77
5x+32=77
5x=77-32
5x=45
x=45/5=9
therefore;
money earned per hour working as a cashier= $9/ hour
money earned per hour working delivering newspapers=$8/hour
Answer:
daw
Step-by-step explanation:
Answer:
c- translation
Step-by-step explanation:
it just moved a few points down
Answer:
Its 0.5 yards or 18 inches
Step-by-step explanation:
Divide 8 yards by 16
Answer:
mean = 0
Step-by-step explanation:
-3 -2 -1
0
1
2
3
if your set is -3, -2, -1, 0, 1, 2, 3 the your mean = 0
