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nataly862011 [7]
3 years ago
9

Brainliest

Mathematics
2 answers:
Amiraneli [1.4K]3 years ago
6 0

Answer: c = 20h − 15

Step-by-step explanation:

The cost should be the total and the text says $20 per hour. Next is the $15 coupon which would take off the amount of $20 per hour. Also such, the answer is c = 20h − 15

Zina [86]3 years ago
4 0

Answer:

c=20h-15

Step-by-step explanation:

It is so because you are taking 15 dollars of the cost.

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Question Help
stira [4]
<span>9/25 and 28/45 are both rather large numbers as denominators, so you can expect your LCD to be a bit large as well. the way i find the LCD is by trial and error. i take the biggest of the denominators and multiply it by low numbers (1, 2, 3, etc.) until i find one that works for both.

45*1 = 45, which 25 doesn't go into evenly
45*2 = 90, which when divided by 25, results in 3.6, aka not a whole number
45*3 = 135, which divided by 25 results in 5.4
45*4 = 180, which divided by 25 results in 7.2
45*5 = 225, which is promising because it ends with "25", and results in 9

so your LCD, which is divisible by both 45 and 25, is 225.</span>
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