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White raven [17]
3 years ago
14

The cost of painting a circular traffic sign is $3.50 per square foot. How much, to the nearest dollar, will it cost to paint th

e sign if its diameter measures 36 in?
Mathematics
1 answer:
zavuch27 [327]3 years ago
6 0
A = pi(r^2)

1. Calculate radius:
r = d/2, so r = 18

2. Enter variable into equation
a = pi(r^2)
becomes a = 3.14(18^2)

3. Solve
a = 3.14(324)
a ~= 1018 in2

4. Convert to feet
1018/12 = 84 ft2

5. Multiply by unit rate
84(3.5) = $294

It will cost $294 to paint the sign.






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gulaghasi [49]
12  \dfrac{1}{3}  + 8  \dfrac{3}{4}  +17  \dfrac{2}{8}  +23  \dfrac{2}{3}

Simplify
= 12  \dfrac{1}{3}  + 8  \dfrac{3}{4}  +17  \dfrac{1}{4}  +23  \dfrac{2}{3}

Change the denominators to be the same
= 12  \dfrac{1 \times 4}{3 \times 4}  + 8  \dfrac{3 \times 3}{4 \times 3}  +17  \dfrac{1 \times 3 }{4 \times 3}  +23  \dfrac{2 \times 4}{3 \times 4}

= 12  \dfrac{4}{12}  + 8  \dfrac{9}{12}  +17  \dfrac{3 }{12}  +23  \dfrac{8}{12}

Combine into single fraction
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2 years ago
Please help me! I will give brainliest to the best answer
8_murik_8 [283]
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There's a 5/28 chance of Shawn losing to Mike and Tim.

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Write 1 2/3 as the sum of a whole number and two fractions that have the same denominator.
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Hello,

pretty sure it would be 5:8 or 5 to 8

any way you want to write it is fine, it means the same thing :)

have a good day!
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