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olga55 [171]
3 years ago
10

Jovie is maintaining a camp fire. She has kept the fire steadily burning for 101010 hours with 151515 logs. She wants to know ho

w many hours (h)(h)left parenthesis, h, right parenthesis she could have kept the fire going with 999 logs. She assumes all logs are the same.
Mathematics
1 answer:
olga_2 [115]3 years ago
3 0

Answer:

6 hours

You are given following data:

15 logs - 10 hours,

9 logs - x hours.

Use proportion to determine unknown value of x:

\dfrac{15}{9}=\dfrac{10}{x}.

Then

15\cdot x=9\cdot 10,\\ \\x=\dfrac{90}{15}=6\ hours.

Answer: 6 hours

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Answer:

Step-by-step explanation:

2x2+5x−10=x2+4

Step 1: Subtract x^2+4 from both sides.

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x2+5x−14=0

For this equation: a=1, b=5, c=-14

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Step 2: Use quadratic formula with a=1, b=5, c=-14.

x=

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1/3log125/8-2log2/5+log80/125
morpeh [17]

Answer:

3log2

Step-by-step explanation:

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\frac{1}{3} log( \frac{125}{8} ) - 2 log( \frac{2}{5} ) + log( \frac{80}{125} )

Required

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log( \frac{125^{\frac{1}{3}}}{8^{\frac{1}{3}}} )- log( \frac{2^2}{5^2} ) + log( \frac{80}{125} )

log( \frac{5}{2}} )- log( \frac{4}{25} ) + log( \frac{80}{125} )

Apply quotient rule

log( \frac{5}{2} / \frac{4}{25} ) + log( \frac{80}{125} )

log( \frac{5}{2} * \frac{25}{4} ) + log( \frac{80}{125} )

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2 years ago
Keisha makes a large sandwich for a family picnic.She takes 1/2 of the sandwich to the picnic.At the picnic,her family eats 3/8
insens350 [35]

Answer:

Keisha has 1/8th of the sandwich that she brings back.

Step-by-step explanation:

To start, take a whole sandwich and subtract the 1/2 she left at home and the 3/8 that her family ate.

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We also need to give them common denominators to complete the action.

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