5s + 5l = 155, 10s + 12l = 346
Solve for s in the first equation.
5s = 155 - 5l
s = 31 - l
Substitute s into the second equation.
10(31 - l) + 12l = 346
310 - 10l + 12l = 346
310 + 2l = 346
2l = 36
l = 18
Substitute l into the first equation.
5s + 5(18) = 155
5s + 90 = 155
5s = 65
s = 13
s = 13, l = 18
Answer:
She walked neighbor's dog 4 times.
Step-by-step explanation:
It is given that:
Peri earned $27 for walking the dogs 3 times.
Unit rate =
Unit rate = $9 per dog
Now,
Peri worked at the same rate and earned $36.
Unit rate = 

d= 36/9
d = 4
Therefore,
She walked neighbor's dog 4 times.
486/6=81
Square root 81 = one side length = 9m
volume = 9^3 = 729
Answer:
0.52 dollars per banana
Step-by-step explanation:
We would want a unit rate where 1 is the denominator
So we would divide the top and bottom by 75
39 dollars/75 bananas divided by 75
= 0.52/per 1 banana