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3 years ago

Lesson 2: Semester B Exam Algebra 1 B Unit 7

Mathematics

1 answer:

Oksana_A [137]3 years ago

4 0

Answer:these weren’t all right

Step-by-step explanation:

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Marlin Davies buys a truck for $28,000. In three years, the truck depreciates 48% in value. How much is the truck worth in three

harkovskaia [24]

In three years the Marlin's truck is worth 13,440$

To find percentage of a number, multiple it with in 0. Of the number.

Example: 28,000 ×. 48

That equals 13,440

So 48% of 28,000 is 13,440

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3 years ago

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What is the quotient if 2/4 of 10 is divided by 2/5 of 5/14? Reduce, if possible.

emmainna [20.7K]

Step-by-step explanation:

$\frac{2}{4} \times 10 \div \frac{2}{5} \times \frac{5}{14} \\ \\ = \frac{20}{4} \div \frac{1}{7} \\ \\ = \: 5 \times \frac{7}{1} \\ \\ = \frac{35}{1} \\ \\ = 35$

Thus, quotient = 35

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3 years ago

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A new car is purchased for 25000 dollars. The value of the car depreciates at 8.25% per year. What will the value of the car be,

BigorU [14]

Given:

Price of a new car = 25000

Depreciation rate = 8.25% = 0.0825

Time = 15 years.

To find:

The value of the car after 15 years.

Solution:

The exponential decay model is

$y=a(1-r)^t$

Where, a is the initial value, r is the rate of decay and t is number of years.

Putting a=25000, r=0.0825 and t=15 in the above formula.

$y=25000(1-0.0825)^{15}$

$y=25000(0.9175)^{15}$

$y=25000(0.274847)$

$y=6871.175$

Therefore, the value of the car after 15 years will be 6871.175.

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3 years ago

If the place these marbles in a bag close your eyes and choose a marble what is the probability that it will be pink?

Sveta_85 [38]

Answer:

3/14

Step-by-step explanation:

There are 14 marbles, 5 are yellow, 6 are blue, and 3 are pink. You have a 5/14 chance to get a yellow marble, a 6/14 chance to get a blue marble, and a 3/14 chance to get a pink marble.

I hope that this helps :)

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3 years ago

Pilar has a side job as a dog walker. She charges a flat rate of $20 per walk, plus $5 for every dog

kozerog [31]

y=5x+20

If you need to you can graph this in Desmos.

y is cost, 5 is price per dog, x is the number of dogs 5 and x times each other. y is total cost.

I hope this helps.

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3 years ago

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