A restaurant offers delivery for their sandwiches. Each sandwich costs $8 and there is a $5 delivery fee. What is the total cost for delivering 2 sandwiches? Write an equation that relates the total cost, c, to the number of sandwiches delivered, x, representing the total cost for delivering x sandwiches.

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kemi6973

23.12.2021

Mathematics

$\frac{x}{2.4} = \frac{3}{8}$

For proportions and to find x we have to cross multiply
8 × (x) = 3 × 2.4

8x = 7.2
Divide by 8 to isolate x

$\frac{8x}{8} = \frac{7.2}{8}$
8 and 8 cancels out

x = 0.9

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