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
zalisa [80]
3 years ago
10

If DE = 4x - 1, EF = 9, and DF = 9x - 22, find the value of x.

Mathematics
1 answer:
arlik [135]3 years ago
5 0

Answer: x=6

Step-by-step explanation:

You might be interested in
Fiona can type 60 words a minute. <br> How many words can be typed in 10.5 minutes?
Nina [5.8K]

Answer:

630 word

10.5 minute: 10×60+0.5×60=600+30=630 second

60 word 60second

? word 630 second

?=630

5 0
2 years ago
Read 2 more answers
Write an equation of the line that passes through a pair of points:
FinnZ [79.3K]

Answer:

The answer is y=4x+14 or C)

Step-by-step explanation:

m=slope                      To find equation of the line you need to do m=1+3/-3+4    m=4      y-y1=m(x-x1)     y+3=4(x+4)     y+3=4x+16     y=4x+13

5 0
3 years ago
The Middle Grades Math Club needs to raise money for its spring trip to Washington, D.C., and for its Valentine’s Day dance. The
Elena L [17]

A.

Cars            Amount

0 cars          $-117.50

1 car             $-113.50

2 cars          $-109.50

3 cars           $-106.50

4 cars           $-102.50

10 cars          $-77.50

50 cars         $82.50

100 cars        $282.50

I do not know what graph you have but, you can see how much money you will make because it will form a straight line on the graph. As long as you continue the line, you will be able to see how many cars you have to clean to make a certain amount of money. Same is for the table.

B.

The change in the amount of money earned with each car is $4.00

The change on the graph is shown by the increasing slope.

C.

The number of cars that need to be washed can be seen by using the formula y=4x-117.5

The information from part a and b is used to show that there is a constant change (slope) and that more money is made by washing more cars.

3. The members need to wash 30 cars (rounded up from 29.375) to break even.

4.  The members would have to wash 249 cars (rounded from 248.125) to fund their Washington trip.

The members would have to wash 117 cars (116.875) to fund their Valentine's Day Dance.

5. They would have to wash 366 cars.

Realistic

This can be realistic if there are a lot of members in the Math Club and if they set up in a good location. It will be successful.

Not Realistic

This is not realistic because there are many other factors that need to be taken into consideration. There might not be enough cars or people that are willing to get their car cleaned by these students. There are other supplies that they might need to buy and more.

4 0
2 years ago
Could someone pls help:(
dsp73

Answer:

4.5

Step-by-step explanation:

3^2=9

1/2*9=4.5

7 0
3 years ago
Read 2 more answers
Y= 12 - 4.5x what’s the slope
mestny [16]
What you do is move the equation around so the 12 -4.5x would now turn into y=-4.5x+12
6 0
3 years ago
Other questions:
  • Popcorn kernels pop independently (i.e. unimolecularly). For one brand at constant temperature, 12 kernels pop in 5 seconds when
    11·1 answer
  • The square root of a number is between 18 and 19
    8·1 answer
  • I WILL GIVE BRAINLIEST IF YOU ANSWER!!!
    13·1 answer
  • " According to the Joy Cone Company, their waffle cones have a diameter of 2 5/8 inches and a
    14·1 answer
  • I NEED HELP ASAP PLEASE​
    11·1 answer
  • What is 136°=92°+6r+2°​
    14·1 answer
  • 7th grade math help meee plzzzz
    14·1 answer
  • 8. Given: PQR and TSR are right triangles,
    9·1 answer
  • A guy wire runs from the top of a cell tower to a metal stake in the ground. Marques places a 11-foot tall pole to support the g
    7·1 answer
  • Beginning with the graph of f(x)= x², what transformations are needed to form g(x)=3(x+2)^2-1 ?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!