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olganol [36]
2 years ago
10

Alex’s SUV gets an average of only 15 miles per gallon. Gas costs $2.19 per gallon. Write a rule that gives the cost of a trip C

when you know the number of miles d that Alex travels.
Mathematics
1 answer:
s2008m [1.1K]2 years ago
7 0

Answer:

(d miles)/(15 miles/gallon)*($2.19/gallon)

Step-by-step explanation:

Fuel efficiency = 15 miles/gallon.

Gas is $2.19/gallon.

Total cost is y.

miles is d

The equation that provides the total fuel for a trip in Alex's SUV would be:

Fuel for d miles (gallons) = (d miles)/(15 miles/gallon)

This is the total fuel required for a trip of d miles.  Multiply this times the cost per gallon to find the total ciost of the trip:

(d miles)/(15 miles/gallon)*($2.19/gallon) = Total cost for a trip of d miles.

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Evaluate the following equation when I =17 and w = 12 for 21 +2w
Elden [556K]

Answer:

45

Step-by-step explanation:

21 + 2w

21 + 2(12)

21 + 24

45

3 0
3 years ago
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If f(x) = −5x + 1, find f(−3). .
valentina_108 [34]
F(x) = -5x + 1

f(-3) = ?

subtitute x = -3 to the equation of the function:

f(-3) = -5 · (-3) + 1 = 15 + 1 = 16
8 0
3 years ago
Read 2 more answers
I don’t understand how to do 1 a.
nikitadnepr [17]

a. 6 x 5 = 30

b. 5.6 x 5 = 28

a. 20 devided by 5 = 5.6

b. 36 devided by 5 = 7.2 (i dont know, that sounds like a pretty tall person to me)

3 0
3 years ago
Find the area of ABC<br>Help
Katarina [22]

The value of the scale factor is 3. Then the height and area of the triangle ΔABC will be 9 ft and 54 square ft.

<h3>What is dilation?</h3>

Dilation means the changing of the size of the object without changing the shape. The size of the object may be increased or decreased based on the scale factor.

The area of the triangle ΔDEF is 6 square ft. And the base length of the triangle ΔDEF is 4 ft.

The area of the triangle is given as

\rm Area = \dfrac{1}{2} \times bh\\\\

Then the height of the triangle ΔDEF will be

\rm 6 = \dfrac{1}{2} \times 4 \times h\\\\h = \dfrac{12}{4}\\\\h  = 3

Then the scale factor will be

\rm SF = \dfrac{12}{4} = 3

Then the height of the triangle ΔABC will be

\rm \dfrac{H}{3} = 3\\\\H \ = 9

Then the area of the dilated triangle ΔABC will be

\rm Dilated \ Area = \dfrac{1}{2} \times 12 \times 9\\\\Dilated \ Area = 54 \ ft^2

More about the dilation link is given below.

brainly.com/question/2856466

#SPJ1

6 0
2 years ago
Help it’s 20 points!! Of a exit ticket!.
natka813 [3]
X=1/2,-3 is the answer
7 0
3 years ago
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