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
slamgirl [31]
3 years ago
7

Mudrik installed a device on his car that guaranteed to increase his gas mileage by 10%. The gas mileage increased by 3 miles pe

r gallon after installing the device. How many miles per gallon did he get before the device was installed?
Mathematics
1 answer:
pogonyaev3 years ago
7 0
Let x =  gas mileage before installing the device.

Because the gas mileage increased by 10% which is equal to 3 miles per gallon, therefore
0.1x = 3
x = 3/0.1 = 30 mi/gal

Answer: 30 miles per gallon

You might be interested in
5(3+t)-3(t + 1)= <br>need these soon pls​
zysi [14]

Answer:

hope it helps

plz mark as brainliest

5 0
4 years ago
Which choice is equivalent to the expression below when y2 0?<br> √y^2 + √16y^3 – 4y√y
DanielleElmas [232]

Answer:

Option C.

Step-by-step explanation:

We start with the expression:

\sqrt{y^3}  + \sqrt{16*y^3} - 4*y\sqrt{y}

where y > 0. (this allow us to have y inside a square root, so we don't mess with complex numbers)

We want to find the equivalent expression to this one.

Here, we can do the next two simplifications:

\sqrt{16*y^3} = \sqrt{16} \sqrt{y^3} = 4*\sqrt{y^3}

And:

y*\sqrt{y} = \sqrt{y^2} *\sqrt{y} = \sqrt{y^2*y} = \sqrt{y^3}

If we apply these two to our initial expression, we can rewrite it as:

\sqrt{y^3}  + \sqrt{16*y^3} - 4*y\sqrt{y}

\sqrt{y^3}  + 4*\sqrt{y^3} - 4\sqrt{y^3} = \sqrt{y^3}

Here we can use the second simplification again, to rewrite:

\sqrt{y^3} = y*\sqrt{y}

So, concluding, we have:

\sqrt{y^3}  + \sqrt{16*y^3} - 4*y\sqrt{y} = y*\sqrt{y}

Then the correct option is C.

8 0
3 years ago
5) PLEASE HELP WITH QUESTION.<br><br> MARKING BRAINLIEST + POINTS GIVEN.
aev [14]
Hello xD

I finally got this one right!

There is a formula to use in order to solve this thing, so find your notebook xD

The correct answer is option B

I really wish you the best and I'll keep trying my best to help you out!

5 0
3 years ago
What is the value of areas of triangles if height is 12 m and base is 6m ?​
luda_lava [24]

Answer:

36 sqm

Step-by-step explanation:

Area = base x height /2

= 12 x 6 /2

= 36sqm

3 0
2 years ago
3.3.3.3.3^2 <br> Write the expression as a single power
Nimfa-mama [501]

Answer:

I think

Step-by-step explanation:

I think its 3 ^7 but i could be wronf

8 0
3 years ago
Other questions:
  • A dilation is a nonrigid transformation that can produce enlarged or reduced images from a given pre-image. How do you know that
    13·2 answers
  • A carpenter has a 6-foot long board. he wants to cut his board into pieces that are 4/5 foot long
    6·1 answer
  • Make 3 1/2 cakes in 20 minutes how many cakes can you make in two hours
    10·1 answer
  • Among 9 electrical components exactly one is known not to function properly. if 4 components are randomly selected, find the pro
    8·2 answers
  • The distance on a map between a student's house and her job is 6 cm on the same map the distance between her house and her schoo
    5·1 answer
  • A plant is 20inches tall. If the plant grows 2h inches each week for the next 4 weeks and h inches for each of the 2 weeks after
    11·2 answers
  • Which expression is equivalent to 3x+10−x+12 ?
    6·2 answers
  • How can -6 1/3 be expressed as the sum of it's integer and fractional parts?
    14·2 answers
  • An elliptical table is being cut from a rectangular piece of wood that is 12 feet by 10 feet. Legs of the table will be
    8·1 answer
  • Anna divided a sheet of paper into 5 equal sections in color 3 of the sections blue what percent of the paper did she color​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!