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umka2103 [35]
3 years ago
8

Luigi is an urban planner. As an independent contractor, he charges $140 fee plus $25 per hour for each contract with the city.

Write an equation that represents this scenario where y represents the total amount he charges for a project and x represents the number of hours worked on a project. I need help, please!!!!!!!
A. x = 25y + 140
B. x = 140y + 25
C. y = 140x + 25
D. y = 25x + 140
Mathematics
1 answer:
Bess [88]3 years ago
4 0

Answer:

D. Y = 25x + 140

Step-by-step explanation:

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A population of 1,750 cheetahs decreases by 10% per year. How many cheetahs will there be in the population after 11 years? Roun
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Answer:

The answer is C. 546.

If a population decreases by 11%, that means that 89% (100% - 11% = 89%) of cheetahs remains each number. 89% can be expressed as 0.89, so to calculate the change of the population, we must each year multiply the number of cheetahs by 0.89.

After 1 year:     1750 * 0.89 ≈ 1558

After 2 years:  1558 * 0.89 ≈ 1387

After 3 years:  1387 * 0.89 ≈ 1234

After 4 years:  1234 * 0.89 ≈ 1098

After 5 years:  1098 * 0.89 ≈ 977

After 6 years:  977 * 0.89 ≈ 870

After 7 years:  870 * 0.89 ≈ 774

After 8 years:  774 * 0.89 ≈ 689

After 9 years:  689 * 0.89 ≈ 613

After 10 years:  613 * 0.89 ≈ 546

Step-by-step explanation:

4 0
3 years ago
Find the percent of decrease from 87 pounds to 16 pounds. Round to the nearest tenth of a percent if necessary. Should be in per
irina1246 [14]

Answer:

81.6

Step-by-step explanation:

7 0
3 years ago
WikiTongues has
konstantin123 [22]

Hey there! I'm happy to help!

We see that 500 languages is a certain percent of the 7,111 total languages. When working with percent equations, the word "is" means "equals", and "of" usually means "multiplied by" This means that 500 is equal to a certain percent multiplied by 7,111. We can use p to represent this certain percent and create an equation below.

500=7,111p

Let's flip the equation around so the p is on the left side. Variables are usually supposed to be on the left.

7,111p=500

We divide both sides by 7,111.

p=0.0703

As a percent, this is about 7.03%. Therefore, about 7.03% of the total languages spoken globally are represented on WikiTongues.

I hope that this helps! Have a wonderful day! :D

3 0
3 years ago
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Which of the following is the inverse of y equals 6^x?
rosijanka [135]

there's not enough information to solve

8 0
3 years ago
Can someone explain this to me and how you do it. Also please help me get the answer and show some work on how you got it!
navik [9.2K]

Answer:

Step-by-step explanation:

5\frac{1}{3} ÷ \frac{4}{7} = \frac{16}{3} ÷ \frac{4}{7}

= \frac{16}{3} × \frac{4}{7}= \frac{64}{21}

3 0
2 years ago
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