MediumLinear equations

OpenStax, Prealgebra 2e §8.4 Solve Equations with Fraction or Decimal Coefficients · Exercise 42 · Algebra · Linear equations

Solve Equations with Fraction or Decimal Coefficients · Exercise 42

Stamps Travis bought $\$ \text{9}.\text{45} $w or t h o f$ \text{49}-\text{cent} $s t am p s an d$ \text{21}-\text{cent} $s t am p s . T h e n u mb er o f$ \text{21}-\text{cent} $s t am p s w a s$ 5 $l ess t han t h e n u mb er o f$ \text{49}-\text{cent} $s t am p s . S o l v e t h ee q u a t i o n$ 0.49 s + 0.21 \left(s - 5\right) = 9.45 $f or$ s, $t o f in d t h e n u mb er o f$ \text{49}-\text{cent}$ stamps Travis bought.

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OpenStax, Prealgebra 2e · §8.4 Solve Equations with Fraction or Decimal Coefficients · Exercise 42

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