3 years ago

The ratio of the cost of a tennis racket to tennis ball is 18:1. If a can of balls cost $5.35, what is the cost of the racket

Mathematics

1 answer:

Korolek [52]3 years ago

5 0

The racket cost is 96.30

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Step-by-step explanation:

Convert the interest rate into decimal and then write down two equations to solve for the unknowns.

$\begin{bmatrix}0.04x+0.06y=2200\\ x+y=47000\end{bmatrix}$

$\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}\\\\x=31000,\:y=16000$

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