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lisov135 [29]
3 years ago
10

working alone, aliyah can dig a 10ft by 10 ft hole is 6 hours. one day her friend eugene helped her and it only took 3.75 hours.

how long would it take eugene to do it alone? disclaimer: the answer is 11.95 hours, but i keep getting 10. please use the 1/x+1/y=1/z strategy
Mathematics
1 answer:
Lemur [1.5K]3 years ago
6 0

Answer:

I think the answer is 10 hours

the 11.95 seems wrong

Step-by-step explanation:

\frac{1}{6}   + \frac{1}{y}   = \frac{1}{3.75}

multiply by 22.5 y

3.75 y + 22.5 = 6y

y = 10

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Answer:

x=10

Step-by-step explanation:

we know that

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7 0
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Find the Area of the composite shape shown below:
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Step-by-step explanation:

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2 years ago
Edger needs 6 cookies and 2 brownies for every 4 plates how many cookies and brownies does he need for 10 plates
evablogger [386]

Answer:

Edger needs 15 cookies and 5 brownies.

Step-By-Step:

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6 0
3 years ago
The number 8,046 can be modeled using base ten blocks. How many of each type of block are needed to build the number?
MArishka [77]

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the first one

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7 0
3 years ago
Read 2 more answers
How do you solve 1-5+1×(4×4-31)×8
Alja [10]
Hey there!

In order to solve this, remember PEMDAS. First, start with solving whatever is in parentheses. Then, move on to exponents. Then, complete the multiplication and division. Lastly, add or subtract anything remaining. Omit any steps that aren't present. 

Parentheses: 

<span>1 – 5 + 1 × (4 × 4 – 31) × 8
</span>1 – 5 + 1 × (–15) × 8

Multiplication/Division (Left to Right):

1 – 5 + (–15) × 8
1 – 5 + (–120)
1 – 5 – 120

Addition/Subtraction (Left to Right):

–4 – 120
–124

Your answer is –124. 

Hope this helped you out! :-)
5 0
3 years ago
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