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Alina [70]
3 years ago
10

Rachel worked 2.5 hours on Monday, 3.5 hours on Tuesday, 2 hours on Thursday, and 5 hours on Saturday. She is paid $10.66 per ho

ur. How much money did Rachel earn that week?
Mathematics
1 answer:
Agata [3.3K]3 years ago
6 0

Answer:

$138.58

Step-by-step explanation:

You would first set up an equation. You want to know how much money Rachel earned that week, so let's refer to that by using variable t for total money earned this week.

Next, we also know that Rachel is paid 10.66 per hour, so we'll be multiplying it by the number of hours she worked this week. This allows us to set our equation up as follows:

10.66(2.5+3.5+2+5) = t

You would now add like terms.

10.66(13) = t

You would now multiply 10.66 and 13(total number of hours worked this week).

This would get us 138.58, or the total numnber of money Rachel earned this week.

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Daniel can paint a house in 10 days, while his father can paint the same house in 6 days. If they work together, how long will t
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Answer:

3\frac{3}{4} days

Step-by-step explanation:

Let the amount of work be x.

Daniel:

10 days = x

1 day = \frac{1}{10}x

Father:

6 days = x

1 day = \frac{1}{6}x

Together:

1 day = \frac{1}{10}x + \frac{1}{6}x

        = \frac{6}{60}x + \frac{10}{60}x

        = \frac{16}{60}x

        = \frac{4}{15}x

No. of days = \frac{15}{15}x ÷ \frac{4}{15}x

                   = \frac{15}{15}x × \frac{15}{4}x

                   = \frac{225}{60}

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4 0
3 years ago
What is the decimal of 0.267 divided by 100
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The height of a tennis ball tossed into the air is modeled by h(x) = 40x â€" 16x 2, where x is elapsed time in seconds. During w
egoroff_w [7]

The time interval x >0.5 and x > 2.04 will the tennis ball be at least 15 feet above the ground.

Given that,

The height of a tennis ball tossed into the air is modeled by,

\rm h(x) = 40x - 16x^2

Where x is elapsed time in seconds.

We have to determine,

During what time interval will the tennis ball be at least 15 feet above the ground?

According to the question,

The height of a tennis ball tossed into the air is modeled by,

\rm h(x) = 40x - 16x^2

Where x is elapsed time in seconds.

Then,

When the tennis ball be at least 15 feet above the ground,

h(x) = 15

Substitute the value of h(x) in the equation,

\rm h(x) = 40x - 16x^2\\\\ 15 = 40x - 16x^2\\\\ 16x^2-40x+15=0

Factorize the equation for finding the time interval will the tennis ball be at least 15 feet above the ground is,

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Hence, The time interval x >0.5 and x > 2.04 will the tennis ball be at least 15 feet above the ground.

For more details about Inequality refer to the link given below.

brainly.com/question/17177510

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What is a trinomial?
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A trinomial is a polynomial with three terms.

For example, a²b - 3ab + 2b or x² - 5x + 6.

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3 years ago
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