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3 years ago

15

For a ride, a taxi driver charges an initial fare of $3.00 plus $2.00 for each 1 mile driven. If the total charge for a ride is

$27.00, what is the distance traveled, in miles?

1 answer:

attashe74 [19]3 years ago

4 0

Answer:

12 Miles

Step-by-step explanation:

27 - 3 = 24

24 ÷ 2 = 12

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If < 1 = 125, what is < 7?

nordsb [41]

Answer:

875

Step-by-step explanation:

125 x 7 = 875

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3 years ago

A grapefruit has a peel that is 1cm thick and a total diameter of 12cm. What percentage of volume of the grapefruit is the peel?

ira [324]

Answer:

0.3056 or 30.56%

Step-by-step explanation:

The volume of the grapefruit with the peel is:

$V_p=\frac{4 \pi (d/2)^2}{3}\\V_p=\frac{4 \pi (12/2)^2}{3}\\V_p=48 \pi$

When removing the peel, the grapefruit diameter becomes 10 cm (take out 1 cm of peel from each side). The volume of the grapefruit without the peel is:

$V_n=\frac{4 \pi (d/2)^2}{3}\\V_n=\frac{4 \pi (10/2)^2}{3}\\V_n=33.333 \pi$

The percentage of the volume correspondent to the peel is given by the difference between both volumes, divided by the total volume:

$\%P = \frac{48\pi - 33.333\pi}{48\pi}\\ \%P =0.3056 = 30.56\%$

30.56% of volume of the grapefruit is the peel.

4 0

3 years ago

What is 0.7 written as a fraction?

alexgriva [62]

7/10 is the fraction for 0.7

7 0

3 years ago

Read 2 more answers

I need help , I keep coming up with the wrong answers!

Vikki [24]

Answer:

$x=\dfrac{7\pm\sqrt{17}}{4}$

Step-by-step explanation:

First of all, write the equation in standard form. Then identify a, b, c and fill in the values in the formula.

$4x^2-9x=2x^2-2x-4\\\\4x^2 -9x -(2x^2-2x-4) = 0\quad\text{subtract right side}\\\\4x^2-9x-2x^2+2x+4=0\quad\text{eliminate parentheses}\\\\2x^2 -7x+4=0\quad\text{collect terms; a=2, b=-7, c=4}\\\\x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}\quad\text{quadratic formula}\\\\x=\dfrac{-(-7)\pm\sqrt{(-7)^2-4(2)(4)}}{2(2)}\quad\text{fill in a, b, c}\\\\\boxed{x=\dfrac{7\pm\sqrt{17}}{4}}\quad\text{simplify}$

5 0

3 years ago

Tim is choosing between two cell phone plans that offer the same amount of free minutes. Cingular's plan charges $39.99 per minu

swat32

Answer: it will take 200 additional minutes for the two plans to cost the same.

Step-by-step explanation:

Let x represent the number of additional minutes it will take for the the two plans to cost the same.

Cingular's plan charges $39.99 per minute with additional minutes costing $0.45. This means that the total cost of x additional minutes would be

39.99 + 0.45x

Verizon's plan costs $44.99 with additional minutes at $0.40. This means that the total cost of x additional minutes would be

44.99 + 0.4x

For the the two plans to cost the same, the number of additional minutes would be

39.99 + 0.45x = 44.99 + 0.4x

0.45x - 0.4x = 44.99 - 39.99

0.05x = 10

x = 10/0.05

x = 200

3 0

3 years ago