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3 years ago

5

When given an equation like 6 x − 3 = y , you need to set the denominator, x - 3, equal to 0 and solve for x. Once you solve for

x, the domain is that value of x. For this example, the domain would be written as "x = 3 ".

1 answer:

olga nikolaevna [1]3 years ago

5 0

False because if you're given the equation 6x - 3 = y, you don't have a denominator

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Gino used 3/4 of the nails in a box. He has 16 nails left. How many did he use?

Irina18 [472]

Gino used 48 nails

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3 years ago

Two persons work together at the local aquarium. It takes the first person 120 minutes to clean the jellyfish tanks. Since the s

matrenka [14]

Answer:

168 minutes

Step-by-step explanation:

It takes 120 minutes for the first person to clean the jellyfish tank.

This means that in 1 minute the first person cleans $\frac{1}{120}$ of the tank.

Let the time taken by the second person working alone to clean the tank be x minutes.

Then in 1 minute the second person cleans $\frac{1}{x}$ of the tank.

Working together, the two persons clean,

$\frac{1}{120} + \frac{1}{x}$ of the tank

But it is given that the two persons working together can clean the tank in 70 minutes. This means that in 1 minute both of them can clean $\frac{1}{70}$ of the tank.

Expressing in equation form:

$\frac{1}{120} + \frac{1}{x} = \frac{1}{70}$

$=> \frac{1}{x} = \frac{1}{70} - \frac{1}{120}$

$=> \frac{1}{x} = \frac{12-7}{840}$

$=> \frac{1}{x} = \frac{5}{840}$

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3 years ago

Convert units of time <br> Convert 5 hrs to seconds.

emmasim [6.3K]

Answer:

<h2>18000 seconds!</h2>

Step-by-step explanation:

<h2><u>5 hours is 18000 seconds!</u></h2>

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4 years ago

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Answer:

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Step-by-step explanation:

Expression

x^2 + 2y

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3 years ago

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Sam is looking for a cell phone plans.A local company offers a monthly plan for $58.95. The company is having a sale and offerin

AysviL [449]

Answer:

Correct cost for the cell phone monthly plan = 54.2$

Explanation:

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3 years ago