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Dafna1 [17]
2 years ago
8

In the first year of ownership, a new car can lose 20% of its value. If a car lost $4200 of value in the first year, how much di

d the car originally cost?
Mathematics
2 answers:
ollegr [7]2 years ago
7 0

Answer:

5250

Step-by-step explanation:

Sever21 [200]2 years ago
5 0
$5250
$5250-20%=$4200
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An ostrich can run 6 mph faster than a giraffe. An ostrich can run 7 miles in the same time that a giraffe can run 6 miles. Find
LUCKY_DIMON [66]

NOTE THIS IS AN EXAMPLE:

Let t = time, s = ostrich, and g = giraffe.

Here's what we know:

s = g + 5 (an ostrich is 5 mph faster than a giraffe)

st = 7 (in a certain amount of time, an ostrich runs 7 miles)

gt = 6 (in the same time, a giraffe runs 6 miles)

 

We have a value for s, so plug it into the first equation:

(g + 5)t = 7

gt = 6

 

Isolate g so that we can plug that variable value into the equation:

g = 6/t

so that gives us:

(6/t + 5)t = 7

Distribute:

6 + 5t = 7

Subtract 6:

5t = 1

Divide by 5:

t = 1/5 of an hour (or 12 minutes)

 

Now that we have a value for time, we can plug them into our equations:

1/5 g = 6

multiply by 5:

g = 30 mph

 

s = 30 + 5

s = 35 mph

 

Check by imputing into the second equation:

st = 7

35 * 1/5 = 7

7 = 7

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2 years ago
Rebecca works at a store that sells clothing accessories. The supply function for pairs of socks is P = Q - 13, where P is the p
stepladder [879]
The quantity is 19 from the solution in the image

7 0
2 years ago
What’s 8/15 divided by 4/5
iragen [17]

Answer: 2/3

Step-by-step explanation: In this problem, we have 8/15 ÷ 4/5. Dividing by a fraction is the same as multiplying by its reciprocal. In other words, we can change the division sign to multiplication and flip the second fraction.

8/15 ÷ 4/5 can be rewritten as 8/15 × 5/4

Now, we are simply multiplying fractions so we multiply across the numerators and multiply across the denominators.

8/15 × 5/4 = 40/60 = 2/3

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2 years ago
An adventure sports club claims to take its hot air balloon to a height of 10,020 feet. The hot air balloon’s elevation is model
Ostrovityanka [42]
C, six minutes, it might be D idk
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2 years ago
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Jose ran13 mile in 3 minutes and 15 seconds. Calculate Jose's rate in minutes per mile; in other words, the time that it would t
Alexus [3.1K]

Answer:

1 mile = 15 seconds

Step-by-step explanation:

3 minutes and 15 seconds = 3 min + 15 sec

1 minute = 60 seconds

15 seconds =15/60 = 0,25 min

then

3minutes and 15 seconds = 3.25 minutes

13miles in 3 minutes and 15 seconds

= 13 miles / 3.25 minutes

= 4 miles / 1 minute

every minute Jose ran 4 miles

then:

4 miles is a 1 minute

1 mile is a T minutes

T = 1*1/4

T = 1/4 minute

1 minute = 60 secomds

1/4 minute = 60*1/4 = 60/4 = 15 seconds

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2 years ago
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