The cost of 5 cans of dog food is $4.35.at this price, how much do 11 cans of dog food cost?

The correct answer is $9,57.

Step-by-step explanation:

To be able to solve this exercise we must begin by analyzing the information we have:

We know that the cost of 5 cans of dog food is 4.35.

Now we are asked to find out how much 11 cans of dog food would cost.

Having 3 of 4 unknowns resolved, the most convenient thing would be to do a cross-multiplication:

if    5 cans 4.35

     11 cans x

5.x = 4,35 . 11

5x = 47,85

x = 47,85 : 5

x = 9,57

In this way we can verify that the correct answer is 9.57.

a. she will receive a refund of $278.

step-by-step explanation:

y = 5x + 17

step-by-step explanation:

a perpendicular line will be the opposite reciprocal slope of the given equation.   the slope given is -1/5 so the opposite reciprocal is 5

find b:

7 = 5 (-2) + b

7 = -10 + b

17 = b

write equation

y = 5x + 17