All categories

2 years ago

Number of gallons of gas. Miles driven 0 0 2 62 4 124 10 310 How many gallons are used when the car has been driven 18 miles

Mathematics

1 answer:

Goryan [66]2 years ago

3 0

558 gallons are used when the car has been driven 18 miles.

Step-by-step explanation:

From the given data, it can be determined that :

The number of gallons for 2 miles = 62 gallons
The number of gallons for 4 miles = 124 gallons
The number of gallons for 10 miles = 310 gallons

Let, the number of gallons for 18 miles = 'x' gallons

To find x :

compare the given data with the unknown data,

62 gallons / 2 miles = x gallons / 18 miles

keep x alone on one side,

x = (62×18) / 2

x = 31×18

x = 558 gallons

Therefore, 558 gallons are used to drive 18 miles.

You might be interested in

Make a ten or a hundred to add mentally 198+132=

lana [24]

330 This the answer

8 0

3 years ago

the tickets for a dance recital cost $5.00 for adults and $2.00 for children. if the total number of tickets sold was 295 and th

alukav5142 [94]

210 adult tickets
85 children tickets
210 x $5 = $1,050
85 x $2 = $170
1,050 + 170 =1,220

8 0

2 years ago

The following function represents the value of a car, in dollars, after x years:

Assoli18 [71]

Answer:

Option D.The decrease in the value of the car, which is 8%

Step-by-step explanation:

we have a exponential function of the form

$f(x)=a(b)^{x}$

where

y is the value of the car

x is the time in years

a is the initial value

b is the base

r is the rate of decrease

b=1+r

In this problem we have

a=$24,000 initial value of the car

b=0.92

0.92=1+r

r=0.92-1=-0.08=-8%-----> is negative because is a rate of decrease

8 0

2 years ago

Read 2 more answers

The sum of a number and its square is 182. Find the number.

Mars2501 [29]

Answer:

13 and -14 satisfy this condition

Step-by-step explanation:

Let's represent that number as x

and the square of x is x^2

So,

x + x^2 = 182

Subtract 182 from both sides

x + x^2 - 182 = 182 - 182

x + x^2 - 182 = 0

rearrange the quadratic equation

x^2 + x -182 = 0

let's use the quadratic formula

$\frac{-b+\sqrt{b^2-4ac} }{2a}$ or $\frac{-b-\sqrt{b^2-4ac} }{2a}$

a = 1, b = 1, c = -182

$\frac{-1+\sqrt{1^2-4*1*(-182)} }{2*1}$ or $\frac{-1-\sqrt{1^2-4*1*(-182)} }{2*1}$

$\frac{-1+\sqrt{1+728} }{2}$ or $\frac{-1-\sqrt{1+728} }{2}$

$\frac{-1+\sqrt{729} }{2}$ or $\frac{-1-\sqrt{729} }{2}$

$\frac{-1+{27} }{2}$ or $\frac{-1-{27} }{2}$

$\frac{26}{2}$ or $\frac{-28}{2}$

13 or - 14

Lets check

13 + 13^2 = 13 + 169

= 182

Also,

-14 + (-14^2) = -14 + 196

= 182

8 0

3 years ago

Human beings have discovered an inhabitable planet and soon after, they find 10 more inhabitable planets. Of these 11, only 5 ar

Tatiana [17]

5 of the planets are earth like and 2 are mars like

5 * 2 = 10

1 * 2 = 2

Total 12

4 earth like and 4 mars like

Earth = 4*2 = 8

Mars = 4 * 1 = 4

Total 12

3 Like Earth 6 like mars

Earth 3 * 2 = 6

Mars 6 * 1 = 6

Total 12

Those answers are the only ones possible.

3 0

3 years ago