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lesya692 [45]
4 years ago
13

Uses formula to find the amount of wrapping paper you need to wrap a gift in the cylindrical box shown. You need to cover the to

p, bottom, and all the way around the box. Use 3.14 for pi.

Mathematics
1 answer:
Nuetrik [128]4 years ago
4 0

Answer:

  960.84 in^2

Step-by-step explanation:

The formula for the surface area of a cylinder is ...

  SA = 2πr^2 +2πrh = 2πr(r +h)

For the given box, the surface area is ...

  SA = 2π(9 in)(9 in + 8 in) = 306π in^2

  SA = 960.84 in^2

960.84 square inches of wrapping paper are needed.

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\text{Hey there!}

\text{Equation for company \#1: \$42 + \$0.05x}

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\text{Now, let's solve for your equations, shall we?}

\text{First set the overall equation up.}

\text{42 + 0.05x = 0.08x}

\text{Which is reverse back to: 0.08x - 0.05x = 42}

\text{0.08x - 0.05x = 0.03x}

\text{New equation (for now) 0.03x = 42}

\text{Divide each term by 0.03}

\dfrac{\text{0.03x}}{0.03}=\dfrac{42}{0.03}

\text{Cancel out:\ } \dfrac{\text{0.03}}{0.03}\text{ because it equals 1}

\text{Keep:\ }\dfrac{42}{0.03}\text{ because it helps us solve for our answer!}

\dfrac{42}{0.03} = 42\div0.03 \rightarrow 1,400

\text{Total: 1,400 pgs. (pages)}

\boxed{\boxed{\text{\bf{Answer should be:1,400 pages}}}}\checkmark

\text{Good luck on your assignment and enjoy your day!}

~\frak{LoveYourselfFirst:)}

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