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3 years ago

A washer and a dryer cost $664 combined. The washer costs $86 less than the dryer. What is the cost of the dryer?

Mathematics

1 answer:

andreyandreev [35.5K]3 years ago

4 0

Answer:

The dryer is 375 dollars

Step-by-step explanation:

The equation would be

664=(D)+(D-86) or

664=(375)+(375-86)

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One end of a ladder 32 feet long is placed 10 feet from the outer wall of a building that stands on the ground level. How far up

ladessa [460]

Answer:

30 ft

Step-by-step explanation:

This is a classic right triangle problem, where the length of the ladder represents the hypotenuse, where the ladder is lengthwise from the building is the base of the triangle, and what we are looking for is the height of the triangle. Pythagorean's Theorem will help us find this length.

$32^2-10^2=y^2$ so

1024 - 100 = y^2 and

y = 30.4 so 30 feet

4 0

3 years ago

The table below represents a function. Which of the following equations could be its function rule?

worty [1.4K]

Answer:

$y=2x-2$ is the required equation.

Therefore, the second option is true.

Step-by-step explanation:

We know that the slope-intercept form of the line equation of a linear function is given by

$y=mx+b$

where m is the slope and b is the y-intercept

Taking two points (0, -2) and (1, 0) from the table to determine the slope using the formula

$\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}$

$\left(x_1,\:y_1\right)=\left(0,\:-2\right),\:\left(x_2,\:y_2\right)=\left(1,\:0\right)$

$m=\frac{0-\left(-2\right)}{1-0}$

$m=2$

substituting the point (0, -2) and the slope m=2 in the slope-intercept form to determine the y-intercept i.e. 'b'.

$y=mx+b$

$-2 = 2(0)+b$

$-2=0+b$

$b=-2$

Now, substituting the values of m=2 and b=-2 in the slope-intercept form to determine the equation of a linear function

$y=mx+b$

$y=2x+(-2)$

$y=2x-2$

Thus, $y=2x-2$ is the required equation.

Therefore, the second option is true.

3 0

3 years ago

A food service worker earns $12 per hour. How much money , m, does the worker earn on a shift of h hours?

kotykmax [81]

$12 is your dependent, or money earned, because in order to know how much you make, you have to know how long you'll work.

Your independent is Per hour.

Hope this helps
:)

5 0

3 years ago

Find the equation of the line that contains the given point and is perpendicular to the given line. Write the equation in slope-

devlian [24]

Answer:

Attached picture

Step-by-step explanation:

if anything remains unclear, just let me know in comments.

5 0

2 years ago

Someone help me please :)

aliina [53]

Answer:

QPR = 73

Step-by-step explanation:

there opposite angles so there equal, therefore we set them equal to each other

(6x+25)=(10x-7)

-4x= -32

x= 8

plug in

6(8)+25

3 0

3 years ago

Read 2 more answers