Rosa earned $50
Explanation:
Two people Rosa & her brother
Her brother earns X
While Rosa earns 2X + 8
Now we gotta solve for X
They made $71. $71 minus X should give you Rosa’s pay
71 - X = 8 + 2X (subtract 8 from 71)
63 - X = 2X (add X to 2X)
63 = 3X (divide by 3)
21 = X
Plug in $21 for Rosa:
8 + 2(21)
8 + 42 = $50
Answer:
(4,-3)
Step-by-step explanation:
x-4y=16
5x+4y=8
find x for one equation
x=4y+16
Now plug this into the other equation
5(4y+16)+4y=8
20y+80+4y=8
24y=-72
y=-3
x=4
Answer:
5 5/12
Step-by-step explanation:
2/3 + 3/4 = 1 5/12 + 3+1
= 5 5/12
Answer:
Here is your answer mate
Step-by-step explanation:
As we know that 7 person take 90 days so 1 person takes 90×7=630 days
As work has to be finished in 15 days than 630/15=42 so
42 people can complete work in 15 days but as we have already 7 people employed so required are
42-7=35 so 35 more are needed
