Question

Please help me with this!

4 glue sticks cost $7.76.
which equation would help determine the cost of 13 glue sticks
choose 1 answer
A x/13 = 4/$7.76
B 13/x = $7.76/4
C 4/$7.76 = 13/x
D 13/4 = $7.76/x
E None of the above

Answer 1

13 glue sticks cost $25.22.

Explanation:

4 blue sticks cost $7.76, this means that one glue stick costs

$7.76/4 = $1.94.

Let be the cost of the glue sticks, and be the number of glue sticks; then

We can use this equation to find the cost of 13 glue sticks; we just put into our equation and it gives:

So 13 glue sticks cost $25.22.