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ioda
3 years ago
13

The Leukemia and Lymphoma Society sponsors a 5K race to raise money. It receives $55 per race entry and $10,000 in donations, bu

t it must spend $15 per race entry to cover the cost of the race. Write and solve an inequality to determine the number of race entries the charity needs to raise at least $55,000.
Mathematics
1 answer:
ArbitrLikvidat [17]3 years ago
3 0
This is easy if im right then it should be 1,000 because look at it this way they charge 55$ and they need to raise 55,000$ and what number has three zeros right off your 1,000 right so times that together and its 55,000

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Solve
PIT_PIT [208]

A cylinder of radius r cm and height h cm has a curved surface area A cm². Where –

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\qquad\purple{ \bf  \longrightarrow A=2 \pi rh }

First, overturn the equation

\qquad\sf  \longrightarrow 2 \pi rh =A

Divide both sides by 2πr

\qquad\sf  \longrightarrow \dfrac{2\pi rh}{2\pi r } = \dfrac{A}{2\pi r}

\qquad\sf  \longrightarrow \dfrac{\cancel{2 \pi r }h}{\cancel{2\pi r} } = \dfrac{A}{2\pi r}

\qquad\purple{\bf  \longrightarrow h = \dfrac{A}{2 \pi r }}

b) Again, we are given –

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  • Radius, r = 2.5 cm
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\qquad\qquad\quad\underline{\sf{Substituting \ Values \ :}}

⠀⠀⠀━━━━━━━━━━━━━━━━━━━━━━━━━━

\qquad\bf  \longrightarrow h = \dfrac{A}{2\pi r  }

\qquad\sf  \longrightarrow h = \dfrac{93}{2 \times 3.1 \times 2.5   }

\qquad\sf  \longrightarrow h = \dfrac{93}{15.5}

\qquad\sf  \longrightarrow h =\cancel{ \dfrac{93}{15.5}}

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2 years ago
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CAN SOMEONE HELP PLZ
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3 years ago
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isosceles traingle:

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x=7

AC= 3x+5

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From the information, it would be a good idea to rotate the candidate choices A. Yes, to avoid response bias.

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