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
ycow [4]
3 years ago
14

Joe is trying to soup up his dragster. He knows that the time needed for the car to go from 0 to 100 miles per hour varies inver

sely with the car's horsepower. At 200 horsepower, the car can go from 0 to 100 mph in 10 seconds. How long should the car take if he can increase the horsepower to 250 hp?
Mathematics
1 answer:
inysia [295]3 years ago
3 0
8 seconds

The hardest part of this is setting up the equation -- the calculations are pretty easy.

You're told that the time (needed to go from 0 to 100 MPH) is inversely proportional to the horsepower:  what this means is that as horsepower gets larger, time gets smaller. This makes sense since the more horsepower you have, the less time it will take you to get to 100 MPH

You can think of this as:

200 HP = 10 seconds
250 HP = x seconds

You set the equation up as:

250 HP / 200 HP = 10 sec / x sec

Now, just cross multiply and solve:

250 / 200 = 10 / x
250x = (200 x 10)
250x = 2000
x = 2000 / 250
x = 8

So, as you increase the horsepower from 200 to 250, the time decreases from 10 seconds to 8 seconds.

Hope this helps!

Good luck.
You might be interested in
Find the slope of (-6,2) and (-4,13)
rewona [7]

We can use the points (-6, 2) and (-4, 13) to solve.

Slope formula: y2-y1/x2-x1

= 13-2/-4-(-6)

= 11/2

______

Best Regards,

Wolfyy :)

6 0
3 years ago
James has three times as many ties as shirts if he has a total of 64 items how many of each does he have
Ahat [919]

Answer:

16 shirts and 48 ties

Step-by-step explanation:

you start with 64 and divide it by 4 i got four cause it says that James had THREE times as many ties as shirts leaving him with leaving him with 3 groups of ties and 1 group of shirts   .  dividing 64 by 4 leaves you with 16 which is the amount of shirts he has and then you would multiply 16 by 3 to get the amount of ties he has.

5 0
3 years ago
while shopping, betting spent five times as much as meg. if they spent a total of $108, how much did each person spend?
yulyashka [42]

Answer:

meg spen $18 and betting spent $90

Step-by-step explanation:

5 0
3 years ago
Ariane borrows $300 on a 5−year loan. She is charged 5% simple interest per year. How much interest is she charged for 5 years?
AnnyKZ [126]

Answer:

Interest = $75

Total to pay back = $375

Step-by-step explanation:

The total amount she will have to pay back is found by the formula:

= Amount borrowed * (1 + rate * years)

= 300 * ( 1 + 5% * 5)

= $375

The interest is therefore:

= Amount to be paid back - Amount borrowed

= 375 - 300

= $75

6 0
3 years ago
Bettina spent $75 on 5 shirts that each cost the same price. Three of the shirts.were red. Wich expression represents the total
maw [93]
The answer is 75/5 * 1/3 because 75/5 is the price of 1 shirt, and 1/3 but I don't know how it's 1/3. I got 75/5 * 3 but the closest answer was C.

Hope this helped☺☺
7 0
3 years ago
Other questions:
  • 3) 25 students were surveyed at Salisbury Middle School about what activities they
    7·1 answer
  • Cole's Cafe offers two kinds of espresso: single-shot and double-shot. Yesterday afternoon, the cafe sold 16 single-shot espress
    15·1 answer
  • A computer software vendor claims that a new version of its operating system will crash fewer than 10 times per year on average.
    10·1 answer
  • In the number 409.21 what digit is in the ones place
    8·1 answer
  • Which linear inequality is represented by the graph?
    13·1 answer
  • A steel beam can be cut to different lengths for a project. Assuming the weight of a
    5·1 answer
  • Im trying to do IXL and I dont understand the way my teacher teaches (ironic right?)
    13·1 answer
  • A function is shown below.<br><br> g(x)=19.60+1.74x<br><br> What is the value of g(30)?
    5·1 answer
  • Triangle JKL is transformed to create triangle J'K'L'. The angles in both triangles are shown.
    13·1 answer
  • What is the Y-Intercept of the line that has a slope of -4 and passes through the point (4,-6)
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!