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Fofino [41]
3 years ago
5

Kristy earns $18 for 2 hours of babysitting. She charges a constant hourly rate. Which table correctly shows the amount Kristy e

arns babysitting for different number of hours?
Mathematics
1 answer:
nlexa [21]3 years ago
4 0

Answer:

Hours(x)\ \ \ \ \ \ \ \ Earning(9x)\$\\1\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 9\\2\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 18\\3\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 27\\4\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 36\\5\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 45

Step-by-step explanation:

For\ 2\ hours\ babysitting\ Kristy\ gets\ \$18\\\\For\ 1\ hour\ she\ will\ get=\frac{18}{2}=\$9\\\\y=9x\\where\ x\ represents\ number\ of\ hours\ and\ y\ earning\\\\Hours(x)\ \ \ \ \ \ \ \ Earning(9x)\$\\1\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 9\\2\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 18\\3\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 27\\4\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 36\\5\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 45

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A Japanese bullet train travels 558 miles per 3 hours A. What is the rate B. How far does the train travel in 1 hour WHO EVER A
Delicious77 [7]

Answer:

Step-by-step explanation:

Remark

The rate is going to be the same as the distance travelled in 1 hour. The units will be different.

Formula

d = r * t

Givens

d = 558 miles

t = 3 hours

Problem A

r = d / t

r = 558/ 3 = 186 miles / hr

Problem B

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r = 186 miles / hour

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d = ?

Solution

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<u>Note</u>

This looks really trivial, but it's not. You have to learn to see the difference between a number and its units. It's not very often that the numbers will be the same, but if the units differ, then it is an entirely different question.

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3 years ago
Help<br><br> Determine which equation is parallel to line jk and which is perpendicular to line jk.
alukav5142 [94]

Answer:

5x + 3y = 13 parallel.

6x - 10y = 7 perpendicular.

Step-by-step explanation:

Two lines with slopes m_1 and m_2 are parallel when m_1=m_2 and are perpendicular when m_1*m_2=-1

Now determine the slope of all the lines

The line jk passes through the points

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Neither parallel nor perpendicular.

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This line is parallel

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Since (-5/3)(3/5) = -1 this line is perpendicular.

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3 years ago
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E-3 is the first one to start writing the assignment.

More similar problems are solved in the link.

brainly.com/question/28391619?referrer=searchResults

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