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zysi [14]
2 years ago
14

Two mechanics worked on a car. The first mechanic charged S75 per hour, and the second mechanic charged S50 per hour. The mechan

ics worked for a
combined total of 25 hours, and together they charged a total of $1750. How long did each mechanic work
Mathematics
1 answer:
11111nata11111 [884]2 years ago
4 0

Step-by-step explanation:

t8d0dt80dtidt8cyxyyx9uf0

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Is 1/2 is equal to 1/10+1/10+1/10+1/10+1/10?
belka [17]

Answer:

Yes

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
What is the equation when y=5x+4 is reflected over the x-axis, y-axis & y=x?
tigry1 [53]

Answer:

A) y=-5x-4

B) y=-5x+4

C) y=\frac{x-4}{5}

Step-by-step explanation:

So we have the equation:

y=5x+4

Let's write this in function notation. Thus:

y=f(x)=5x+4

A)

To flip a function over the x-axis, multiply the function by -1. Thus:

f(x)=5x+4\\-(f(x))=-(5x+4)

Simplify:

-f(x)=-5x-4

B) To flip a function over the y-axis, change the variable x to -x. Thus:

f(x)=5x+4\\f(-x)=5(-x)+4

Simplify:

f(-x)=-5x+4

C) A reflection over the line y=x is synonymous with finding the inverse of the function.

To find the inverse, switch x and f(x) and solve for f(x):

f(x)=5x+4

Switch:

x=5f^{-1}(x)+4

Subtract 4 from both sides:

x-4=5f^{-1}(x)

Divide both sides by 5:

f^{-1}(x)=\frac{x-4}{5}

And we're done :)

7 0
2 years ago
50 POINTS !!<br><br><br> PLEASE HELP !! ILL GIVE BRAINLIEST TO THE RIGHT ANSWERS.
Sliva [168]

Answer:

80

Step-by-step explanation:

18^2 + 80^2 = 82

324 + 160 = c^2

4 0
3 years ago
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What is the constant of variation, k, of the direct variation, y = kx, through (–3, 2)?
UkoKoshka [18]
Y = kx ⇒ k = y/x = 2/(-3) = -2/3

Answer: k = -2/3
8 0
3 years ago
One of the acute angles in a right triangle has a measure of 36.6°. What is the measure of the other acute angle?
Solnce55 [7]
Triangles equal 180 degrees total
It’s a right triangle so one of the angles is 90 degrees and we know another angle is 36.6
So 90+36.6= 126.6
180-126.6= 53.4
So I’m assuming the correct answer is C since that’s the closet number to 53.4
5 0
3 years ago
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