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miss Akunina [59]
3 years ago
10

A plumber charges $47.50 per hour plus a

Mathematics
1 answer:
aniked [119]3 years ago
5 0

Answer:

445 dollars

Step-by-step explanation:

You are given he charges 47.5 per hour so 47.5x is how much you will pay for x hours and he charges a 65 dollar service fee.

So together he is charge you 47.5x+65 for x hours.

If it spends 8 hours, the cost will be 47.5(8)+65=445.

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A worker gets paid overtime at the rate of normal time plus one third. One week he works 40 hours of normal time and 6 hours ove
Leya [2.2K]

Answer:

$ 720

Step-by-step explanation:

Normal time $ 15

Overtime: 15 x 1/3 = $5 + $15 = $20

(40 x 15) + (6 x 20) = 600 + 120

5 0
2 years ago
What is theformula for finding the hight of a 30-60-90 degree triangle
miv72 [106K]
We don't know which side your triangle is sitting on, so the 'height'
could be any one of three values.

Here are the two simple tools that tell you everything you want to
know about a 30°-60°-90° triangle.  These are worth memorizing:

-- The side opposite the 30° angle is 1/2 of the hypotenuse.

-- The side opposite the 60° angle is 1/2 of the hypotenuse times √3 .

I memorized them exactly 60 years ago.  They've been very useful,
and as far as I know, they haven't changed.
7 0
3 years ago
What is the common ratio for the sequence 28,14,7,3.5 ?
wolverine [178]

Answer:

Its 2

Step-by-step explanation:

7 0
3 years ago
Complete the steps: 4/9 ÷ 1/2
Alexxandr [17]

Answer:

4/9 times 2/1 and 8/9

Step-by-step explanation:

ya know its called trust? :) this is right. F edgenuity

5 0
3 years ago
Read 2 more answers
Find the value of k for x^2 - 2kx+7k -12=0 so that they have two equal roots
Alisiya [41]

Step-by-step explanation:

x^2 -2kx +7k -12 = 0

two equal roots -->Δ = b^2 -4ac = 4k^2 - 4(7k-12)=0 = 4(k^2 - 7k +12)=4(k-4)(k-3)=0

so k =3 and k =4

5 0
3 years ago
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