Applications with Decimals Exercises

Complete this assessment to practice calculating applications with decimals. Be sure to check your answers.

Answers


1. \begin{aligned} \text { Total Cost } &=7(22.75)+714(0.15) \\ &=159.25+107.10 \\ &= 266.35 \end{aligned}

2. \begin{aligned} \frac{3.801 \cdot x}{3.801} &=\frac{3.804801}{3.801} \\ x &=1.001 \end{aligned}

3. \begin{aligned} \text { First } &+\text { Additional } \\ 30=10 &+ 20 \\ \text { Total Cost } &=10(0.50)+20(0.12) \\ &=5.00+2.40 \\ &=7.40 \end{aligned}

4. A = \pi r^2
\frac{16 \pi}{\pi} = \frac{\pi r^2}{\pi}
16 = r^2
4 = r
d=2r
d=2(4)
d = 8 in