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ddd [48]
3 years ago
14

A taxi company charges passengers $2.00 for a ride, no matter how long the ride is, and an additional $0.20 for each mile travel

ed. The rule c 0 20m+ 2 00 describes the relationship between the number of miles m and the total cost of the ride c. What is the charge for a 1-mile ride?
Mathematics
1 answer:
tiny-mole [99]3 years ago
3 0

The answer will be $2.20. Because they only traveled one mile, which is 20 cents. Also the original cost before they even started driving was $2.00.

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Michael is 4 times as old as brandon and is also 27 years older than brandon<br> how old is brandon?
Komok [63]

Let the age of Brandon be x.

Therefore the age of Michael is 4x

Also the age of Michael is 27+x

So

4x=27+x

3x=27

X=9

Brandon age is 9years while Michael's age is 36

6 0
2 years ago
The triangle below has an exterior angle of 110 degrees. What is the value of angle x?
faltersainse [42]

Answer: 70 degrees

Step-by-step explanation:

An exterior angle and the interior angle it corresponds to are supplementary.

4 0
2 years ago
For a certain​ drug, the rate of reaction in appropriate units is given by Upper R prime (t )equalsStartFraction 2 Over t plus 1
Tems11 [23]

Answer:

a) 8.13

b) 4.10

Step-by-step explanation:

Given the rate of reaction R'(t) = 2/t+1 + 1/√t+1

In order to get the total reaction R(t) to the drugs at this times, we need to first integrate the given function to get R(t)

On integrating R'(t)

∫ (2/t+1 + 1/√t+1)dt

In integration, k∫f'(x)/f(x) dx = 1/k ln(fx)+C where k is any constant.

∫ (2/t+1 + 1/√t+1)dt

= ∫ (2/t+1)dt+ ∫ (1/√t+1)dt

= 2∫ 1/t+1 dt +∫1/+(t+1)^1/2 dt

= 2ln(t+1) + 2(t+1)^1/2 + C

= 2ln(t+1) + 2√(t+1) + C

a) For total reactions from t = 1 to t = 12

When t = 1

R(1) = 2ln2 + 2√2

≈ 4.21

When t = 12

R(12) = 2ln13 + 2√13

≈ 12.34

R(12) - R(1) ≈ 12.34-4.21

≈ 8.13

Total reactions to the drugs over the period from t = 1 to t= 12 is approx 8.13.

b) For total reactions from t = 12 to t = 24

When t = 12

R(12) = 2ln13 + 2√13

≈ 12.34

When t = 24

R(24) = 2ln25 + 2√25

≈ 16.44

R(12) - R(1) ≈ 16.44-12.34

≈ 4.10

Total reactions to the drugs over the period from t = 12 to t= 24 is approx 4.10

3 0
3 years ago
The product of two integers is 72.one number is two less than 5 times the other
harkovskaia [24]
X*y=72
x = 5y-2

x=72/y
72/y=5y-2

72=5y^2-2y
5y^2 -2y - 72 = 0
(5y+18)(y-4)=0
y = -18/5 discard
or y = 4
4x=72
x=18

(18,4)
4 0
3 years ago
Sally took her stats test last week and scored a 45%. The class average was 55%with a standard deviation of 4.5. How many standa
sesenic [268]

Answer: A

Step-by-step explanation:

5 0
3 years ago
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