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
ratelena [41]
2 years ago
12

John bikes at a speed of 10 miles per hour

Mathematics
2 answers:
stepan [7]2 years ago
4 0

Answer:

15 miles

Step-by-step explanation:

Distance = Speed x Time

= 10 mph x 1.5 h

mihalych1998 [28]2 years ago
3 0

Answer:

15 miles

Step-by-step explanation:

10x1.5=15

You might be interested in
Dwayne drove 18 miles to the airport to pick up his father and then returned home. On the return trip he was able to drive an av
Nesterboy [21]

Answer:

30 mph

Step-by-step explanation:

Let d = distance (in miles)

Let t = time (in hours)

Let v = average speed driving <u>to</u> the airport (in mph)

⇒ v + 15 = average speed driving <u>from</u> the airport (in mph)

Using:  distance = speed x time

\implies t=\dfrac{d}{v}

Create two equations for the journey to and from the airport, given that the distance one way is 18 miles:

\implies t=\dfrac{18}{v}  \ \ \textsf{and} \ \  t=\dfrac{18}{v+15}

We are told that the total driving time is 1 hour, so the sum of these expressions equals 1 hour:

\implies \dfrac{18}{v} +\dfrac{18}{v+15}=1

Now all we have to do is solve the equation for v:

\implies \dfrac{18(v+15)}{v(v+15)} +\dfrac{18v}{v(v+15)}=1

\implies \dfrac{18(v+15)+18v}{v(v+15)}=1

\implies 18(v+15)+18v=v(v+15)

\implies 18v+270+18v=v^2+15v

\implies v^2-21v-270=0

\implies (v-30)(v+9)=0

\implies v=30, v=-9

As v is positive, v = 30 only

So the average speed driving to the airport was 30 mph

(and the average speed driving from the airport was 45 mph)

8 0
2 years ago
Read 2 more answers
How does the number of zeros in the product of 8 and 5000 compare to the number of zeroes in the factor
almond37 [142]
The number of zeros in the product has 5 zeros and the zeros in the factor has 4 zeros because when you multiply 5,00x by8 you get 40,000
6 0
3 years ago
If f(x) = 8 - 4x, find the value of x when f(x) = -12.
DiKsa [7]

Answer:

x=5

Step-by-step explanation:

-12=8-4x

-20=-4x

5=x

7 0
2 years ago
Read 2 more answers
Karla’s starting salary was $32,000. She gets a 5% raise every year. Does this situation model a linear function?
r-ruslan [8.4K]

Answer:

I believe it does

Step-by-step explanation:

32000 times .05

5 0
3 years ago
Help please!!!!!!!!!
REY [17]

Since all triangle's angle's values add up 180 degrees, this means we have to make sure to angles add up to 180.

A. 75 + 35 = 110. 180 - 110 = 70 degrees.

B. This triangle is isosceles meaning 2 of its sides is the same length. In this case, the two sides add up to 140 (meaning they are both 70 degrees). 180 - 140 =  40 degrees.

C. I sadly don't know how to solve it.

D. This is another isosceles triangle. 180 - 36 = 144.

7 0
3 years ago
Other questions:
  • A store sells grapes for $1.99 per pound. You buy 2.34 lbs. of grapes. How much do you pay? Please help!
    13·2 answers
  • Phase ________ of clinical testing is required by the FDA before drug approval and uses the greatest number of subjects.
    6·1 answer
  • Are the statements true or false?
    10·1 answer
  • How many times does the quadratic function below intersect the x-axis?<br> y = 2x2 +7x+6
    9·1 answer
  • Suppose that you currently own a clothes dryer that costs $35 per month to operate. A new efficient dryer costs $750 and has an
    14·1 answer
  • Please help me please.
    9·1 answer
  • What is 26.73 divided by 9?
    7·2 answers
  • ask any question to me any school grade from pre k to 9th grade ill try my best to answer it correctly also i am lonely so plz f
    9·2 answers
  • Is 3x + 2y = 5 direct variation
    14·1 answer
  • Which divisor of -2x^3 - 5x^2 + 4x - 2 results in a remainder of -14
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!