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
drek231 [11]
3 years ago
7

Problem page a family has two cars. the first car has a fuel efficiency of 30 miles per gallon of gas and the second has a fuel

efficiency of 20 miles per gallon of gas. during one particular week, the two cars went a combined total of 1100 miles, for a total gas consumption of 45 gallons. how many gallons were consumed by each of the two cars that week?
Mathematics
1 answer:
kkurt [141]3 years ago
4 0
You will have 2 equations.
30x+20y=1100
and 
x+y=45
by putting it into standard form
-(30/20)x+55=y 
you can now solve finding the answer to be 20 for x and 25 for y.
Plug it into the original equation to find it correct and then plug it into x+y
20+25=45
30*20+25*20=1100
You might be interested in
A bicycle store costs ​$4200 per month to operate. The store pays an average of ​$75 per bike. The average selling price of each
Lelechka [254]

Store should sell about 31 bicycle for average price of $135 each bicycle.

Step-by-step explanation:

  • To find bike we need Algebra to solve the equation.
  • when x = 1 , Y = 135 *x
  • When x 2 , Y = 135 *2
  • Formula you could apply to go for break even y = 135*x
  • Bicycle store pays about $4200
  • Algebra used for every business and working to make easy task.
  • It takes about 31 bicycle a month to get into break even.
  • Every store needs break even to not incur lost.
  • Break even point is equilibrium between income and expenses.

7 0
3 years ago
62 is 50% of what number?
Stels [109]
62 is 50% of 124 (62*2=124)
5 0
3 years ago
Read 2 more answers
What is 884 divided by 3
matrenka [14]

Answer:

294.6666666666667

3 0
3 years ago
Read 2 more answers
Manuela solved the equation below.
Leni [432]

Answer: the answer is really -8 (A)

Step-by-step explanation: because how do 0 make since u can't divide 3x and -8

3 0
3 years ago
Read 2 more answers
Find the absolute maximum and absolute minimum values of f on the given interval. (If an answer does not exist, enter DNE.)
vodka [1.7K]

Answer:

absolute max is 120 and absolute min is -8

Step-by-step explanation:

Find critical numbers

f'(x) = 3x^2 - 12x + 9 = 0

= 3(x^2 - 4x + 3) = 0

3(x-3)(x-1) = 0

(x-3) = 0 or (x-1)=0

x = 1,3

Test them!

x<1     Sign of f' on this interval is positive

1<x<3 Sign of f' on this interval is negative

x>3    Sign of f' on this interval is positive

f(x) changes from positive to negative at x = 1 which means there is a relative maximum here.

f(x) changes from negative to positive at x = 3 which means there is a relative minimum here.

Test the endpoints to find the absolute max and min.

f(-1) = -8

f(1) = 12

f(3) = 8

f(7) = 120

The absolute maximum value of f is 120 and the absolute minimum value of f is -8.

7 0
3 years ago
Other questions:
  • Write an equation of the line graphed in slope-intercept form using the variables x and y.
    14·1 answer
  • The vertical axis of a demand curve shows
    16·2 answers
  • Solve for an angle in right triangles help
    11·1 answer
  • May someone please help me with question 6 and 7?
    15·1 answer
  • What is the slope of the line<br><br>​
    11·2 answers
  • A container holds 54.6 gallons of liquid. The container leaks 8.4 gallons per hour.
    12·1 answer
  • Pls help, it's a timed quiz
    8·1 answer
  • <img src="https://tex.z-dn.net/?f=%5Cfrac%7B%28csc%20x%2B1%29%28csc%20x-1%29%7D%7Bcsc%5E2x%7D%5C%5C" id="TexFormula1" title="\fr
    5·1 answer
  • 5/6+5/12 <br><br> For brainliest
    7·2 answers
  • A delivery truck is transporting boxes of two sizes: large and small. The combined weight of a large box and a small box is 60 p
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!