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3 years ago

ILL MARK BRAINIEST IF YOU DO THIS CORRECTLY!!!

Mathematics

2 answers:

nordsb [41]3 years ago

7 0

Answer:

D because it costs less for 7 hours

7nadin3 [17]3 years ago

5 0

Answer:

The company that would give you the best deal would be Company D.

Step-by-step explanation:

Company A:

First you set up as an equation.

y=25x+50

I used 25x because 25 represents the hourly rate and x represents the hour it increases.

y=25(7)+50

We have to substitute 7 in for x because it says "If you had planned for 7 hours".

Multiply 25 and 7. You should get 175.

y=175+50

Add 175 and 50. You should get 225.

y=225.

You do the same thing for the rest of the problems.

Company B:

y=30x+40

y=30(7)+40

y=210+40

y=250

Company C:

y=20x+60

y=20(7)+60

y=140+60

y=200

Company D:

y=5x+150

y=5(7)+150

y=35+150

y=180

The company that would give you the best deal would be Company D.

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Kelly bought cups for home. Each cup cost $3. He gave

-Dominant- [34]

Answer:

40-13=27

3*9=27

She bought 9 cups.

Brainliest plz

6 0

2 years ago

"The major disadvantage of crude rates is that:

Tpy6a [65]

Answer:

<h3>The option D) All of the above is correct</h3><h3>The major disadvantage of crude rates is that:</h3>

They may not allow for comparison of populations that differ
They do not permit comparisons of populations that vary in age distribution.
They are difficult to calculate from available data sources.

Hence options A ,B and C are correct

Step-by-step explanation:

Given that crude rate

To find the disadvantage of crude rate :

A crude rate is the number of new cases (or deaths) occurring in a specified $\frac{population}{year}$ , it can be expressed as the number of cases per 100,000 population at risk.

<h3>The major disadvantage of crude rates is that:</h3>

They may not allow for comparison of populations that differ
They do not permit comparisons of populations that vary in age distribution.
They are difficult to calculate from available data sources.

Hence options A ,B and C are correct

<h3>∴ The option D) All of the above is correct.</h3>

7 0

3 years ago

Write an expression for the sequence of operations described below.

kvv77 [185]

(s÷t) - r is the correct expression.

8 0

3 years ago

Find the equation of the line passing through the points (-2/3,1) and (-2,1/2). Write the equation in standard form.

7nadin3 [17]

Standard form is y = mx + b.
To find the slope, m, we must find the 'rise over run,' or the difference in y divided by the difference in x. We do this by:
$\frac{y1 - y2}{x1 - x2} = \frac{ (- \frac{2}{3} ) - ( -2 )}{(1) - ( \frac{1}{2} ) } = \frac{ \frac{4}{3} }{ \frac{1}{2} } \\ = \frac{4}{3} \times \frac{2}{1} = \frac{8}{3}$
Therefore, the slope is 8/3.

To find b, we must plug in the slope and one point:
$(1) = ( \frac{8}{3} )( - \frac{2}{3} ) + b \\ 1 = - \frac{16}{9} + b \\ \frac{25}{9} = b$
Therefore, b is 25/9, and the total equation is
$y = \frac{8}{3} x + \frac{25}{9}$

3 0

3 years ago

Choose the function whose graph is given by:

Sophie [7]

Answer:

C.y=sin(x-2)

Step-by-step explanation:

Using the topic of transformation of functions(rules shown in picture above)

the the (x-2) moves the graph to places to the right

and as the sine graph goes through 0 and so you add 2 to the right (but there is a problem in the graph should in the picture as it should me labeled 0,90,180,270,360 not these small numbers)

hope it helps!! :)

5 0

2 years ago