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tankabanditka [31]

3 years ago

10

your kitchen is in your house is being remolded. it takes 2 workers , 12 days to finish the job. Each worker works 7 hours a day

at $25.50 per hour. How much will it cost to hire the workers ?

1 answer:

uranmaximum [27]3 years ago

3 0

I think it is $4284 b/c you would do $25.5*7 hours*12 days*2 workers=$4284 total

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3 years ago

Working together, Beth and Katy can wash a car in 6 minutes. Had she done it by herself, it would have taken Katy 18 minutes. Ho

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Answer:

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7 0

3 years ago

Which is an x-intercept of the graphed function?<br><br> (0, 4) <br> (–1, 0)<br> (4, 0)<br> (0, –1)

Alex Ar [27]

Answer:

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6 0

2 years ago

Read 2 more answers

Solve the system of equations using substitution and Elimination

juin [17]

<h2>Greetings!</h2>

Answer:

y = $\frac{-18}{7}$ and x = $\frac{50}{7}$

Step-by-step explanation:

To solve simultaneous equations, you need to have the number in front of both x's or y's the same. (signs doesn't matter)

To get -x to -10x we simply need to multiply the first equation by 10:

-x * 10 = -10x

-9y * 10 = -90y

16 * 10 = 160

-10x - 90y = 160

Now we can add the two equations:

-10x + 10x = 0

-90y + 20y = -70y

160 + 20 = 180

-70y = 180

70y = -180

7y = -18

y = $\frac{-18}{7}$

Now plug $\frac{-18}{7}$ into the second equation:

10x + 20( $\frac{-18}{7}$ ) = 20

10x - $\frac{360}{7}$ = 20

Move the $\frac{360}{7}$ over to the other side, making it a positive:

10x = 20 + $\frac{360}{7}$

10x = $\frac{500}{7}$

Divide both sides by 10:

x = $\frac{50}{7}$

So y = $\frac{-18}{7}$ and x = $\frac{50}{7}$

<h2>Hope this helps!</h2>

5 0

3 years ago