1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Andreas93 [3]
2 years ago
6

If your car gets 28 miles per​ gallon, how much does it cost to drive 390 miles when gasoline costs ​$2.90 per​ gallon?

Mathematics
1 answer:
Valentin [98]2 years ago
8 0

Answer: x = $25.89

Step-by-step explanation:

This is a two step problem.  First we need to determine the number of gallons the car uses to drive the 250 miles:

250/28 ≈ 8.93 gallons

Then we just multiply the number of gallons by the price:

8.93 x 2.90 = $25.90

Alternate solution:  Use a proportion.  Since 1 gallon costs $2.90 and produces 28 miles, we can set up the following proportion:

2.90/28 = x/250

Cross-multiply and solve:

28x = 725

x = $25.89 (There is a one cent difference due to a rounding error in the first solution.  This solution avoids that error.)

You might be interested in
You have $200 in a savings account. Each week for 8 weeks, you take put $18 for spending money. How much money is on your accoun
IceJOKER [234]

8 * 18 = 144

200 - 144 = 56

so $56 dollars would be left in your bank account

8 0
3 years ago
Read 2 more answers
PLEASE HELP
Elodia [21]

Answer:

The area of the resulting cross section is 78.5\ m^{2}

Step-by-step explanation:

we know that

The resulting cross section is a circle congruent with the circle of the base of cylinder

therefore

The area is equal to

A=\pi r^{2}

we have

\pi=3.14

r=10/2=5\ m -----> the radius is half the diameter

substitute the values

A=(3.14)(5)^{2}=78.5\ m^{2}

7 0
3 years ago
Find the equation of the line specified.
OLga [1]
The point slope form of a straight line is y-y1 = m(x-x1)

y -(-3) = -7(x-5)

y + 3 = -7(x-5)

y = -7x + 35 - 3

y = -7x + 32

7 0
3 years ago
What is the answer??????
dexar [7]

Answer:

38 5/28

Step-by-step explanation:

Well start with the whole numbers 24 and 13 This is adding so that means everything has to be added together. 13+24=37 Now, lets go the fractions.

Find the LCD (Least Common Denominator)  of 3/4 and 3/7 and rewrite to solve with the equivalent fractions. (remember the Denominator is the BOTTOM PART of the Fraction. Such as the 4 in 3/4.)  

LCD = 28

21/28 + 12/28 = 33/28 which can be simplified to 1 5/28. Combining the whole and fraction parts 37 + 1 + 5/28 = 38 5/28 And that will be your answer. Another way you can do this is

converting mixed numbers to fractions Meaning put them in improper form where the numerator (the top number of a fraction is bigger than the denominator such as 4/3) , our initial equation becomes, 99/4 + 94/7

Applying the fractions formula for addition,

(99×7) + (94×4) / 4×7

= 693+376 / 28 =  

= 1069/ 28

Simplifying 1069/28, the answer is

= 38 5/28

And one more thing. An easier way to make a mixed number a improper fraction is the multiply the denominator by the whole number then add the numerator and whatever the denominator is it stays for example

38 5/28.

28 times 38 = 1064 then add the 5 and you get 1069! But we aren't done yet, the denominator was 28 so that means the full answer is 1069/28 and that is the Improper fraction form!

Hope this helps! (sorry I took so long)

~R.C aka dj

 

6 0
3 years ago
Help please..................
Svetradugi [14.3K]
Substitute p and q with the given numbers (6 and 5) then use pemdas
18+42/6-5= 20
4 0
2 years ago
Read 2 more answers
Other questions:
  • It cost $3.99 for 25 fl. oz. of detergent or $6.99 for 90 fl. oz. Which is a better buy?
    6·2 answers
  • Four cards are dealt from a standard fifty-two-card poker deck. What is the probability that all four are aces given that at lea
    11·1 answer
  • There is 12\15 of a pizza left. How many 3\10 pieces can be made from the leftover pizza?
    14·1 answer
  • Gints
    14·1 answer
  • What is the value of the expression below?<br> (V9)2 +10
    10·2 answers
  • In 1955 an antique car that originally cost 3,943 is valued at 64,125 if in excellent condition, winch is 2 1/4 times as much as
    7·1 answer
  • A population of rabbits reproduces at an alarming rate of tripling each Month.How many rabbits will there be after 7 months if t
    10·2 answers
  • Solve for x: |2x+6| -4 = 20
    11·1 answer
  • What is the equation, written in vertex form, of a parabola with a vertex of (–2, 6) that passes through (1, –3)?
    12·1 answer
  • Help plzzzzzzzzzz !!!!!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!