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3 years ago

13

A plumber charges $25 for a service call plus $50 per hour of service write an equation to represent the cost of hiring this plu

mber

1 answer:

notka56 [123]3 years ago

8 0

Answer:

$(25 + 50h)

Step-by-step explanation:

Cost = 25 + 50h

Where 'h' is the number of hours of service

8 hours of work: h = 8

Cost = 25 + 50(8) = $425

10 hours of work: h = 10

Cost = 25 + 50(10) = $525

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Which number line shows the solution set for |y-9| <12

RUDIKE [14]

Answer:

Option c

$y\geq-3$ or $y \leq 21$

Step-by-step explanation:

The absolute value is a function that transforms any value x into a positive number.

Therefore, for the function $f(x) = |x|$ x> 0 for all real numbers.

Then the inequation:

$|y-9| \leq 12$ has two cases

$(y-9)$ if $y \geq 9$ (i)

$-(y-9)$ if $y < 9$ (ii)

We solve the case (i)

$y \leq 9 + 12\\y\leq21$

We solve the case (ii)

$-y +9 \leq 12\\-y \leq 12-9\\y \geq -3$

Then the solution is:

$y\geq-3$ or $y \leq 21$

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3 years ago

If anyone could help it would be greatly appreciated

Ira Lisetskai [31]

Answer:

Step-by-step explanation:

area of one triangle=(1/2)×6×4=12 m²

area of four triangles=4×12=48 m²

area of square=6×6=36 m²

total area=48+36=84 m²

4 0

4 years ago

Complete the table to show the area of each circle.

Troyanec [42]

Answer: look at my work its 10 pi cm ^2

Step-by-step explanation:

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2 years ago

Read 2 more answers

I really Need help solving this problem!

Paraphin [41]

Answer:

Hello,

Answer A : 11.2 ≤ X ≤ 29.2

Step-by-step explanation:

$Z=\dfrac{X-20.2}{4.5} \\\\X=4.5*Z+20.2\\\\For\ Z=-2, \ X=4.5*(-2)+20.2=11.2\\For\ Z=2, \ X=4.5*2+20.2=29.2\\$

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3 years ago

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Dafna1 [17]

I hope you don't find the solution too messy. If there is anything you don't get. Let me know and I will explain it:

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3 years ago