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
sweet-ann [11.9K]
3 years ago
10

The train traveled at a speed of 90 miles per hour for 3 hours then slowed down to 72 miles per hour for the next 1 1/2 hours. W

hat is the total number of miles the train traveled?
Mathematics
1 answer:
Viefleur [7K]3 years ago
4 0

Answer:

378 miles

Step-by-step explanation:

<u>Remember that (rate)(distance) = time</u>

The train is going 90 mph for 3 hours. That's 270 miles in 3 hours.

Then you would multiply 72 (mph) by 1 1/2 (hours) and get 108 miles traveled in 1 1/2 hours.

Add those together and you get 378.

You might be interested in
Find the product of the roots of the equation<br> xl-5x - 36 = 0
Marat540 [252]

Answer:

Step-by-step explanation:

Hello, I assume that you mean

x^2-5x-36

The product is -36.

x_1 \text{ and } x_2 \text{ are the two roots, we can write}\\\\(x-x_1)(x-x_2)=x^2-(x_1+x_2)x+x_1\cdot x_2

So in this example, it means that the sum is 5 and the product is -36.

Thank you

5 0
3 years ago
The formula for converting celsius to fahrenheit is F = 9/5C+32.
NISA [10]

Step-by-step explanation:

thats is all,just subject of formula

7 0
1 year ago
It is customary to give a 15% tip for a meal at a restaurant. what is 15% of $64.40
alex41 [277]

Answer:

$9.66 isb15% of $64.40

Step-by-step explanation:

64.40×15%

7 0
1 year ago
Factor 9x^2+66xy+121y^2
Korvikt [17]
Answer: (3x + 11y)^2

Demonstration:

The polynomial is a perfect square trinomial, because:

1) √ [9x^2] = 3x

2) √121y^2] = 11y

3) 66xy = 2 *(3x)(11y)

Then it is factored as a square binomial, being the factored expression:

 [ 3x + 11y]^2

Now you can verify working backwar, i.e expanding the parenthesis.

Remember that the expansion of a square binomial is:

- square of the first term => (3x)^2 = 9x^2
- double product of first term times second term =>2 (3x)(11y) = 66xy
- square of the second term => (11y)^2 = 121y^2

=> [3x + 11y]^2 = 9x^2 + 66xy + 121y^2, which is the original polynomial.

7 0
3 years ago
6 times the difference of d and 5?​
densk [106]

Answer:

6d-30

Step-by-step explanation:

6(d-5)

6d-30             distributive property

4 0
2 years ago
Other questions:
  • K is the midpoint of JL. If JK = 7x + 4 and KL = 12x - 21, what is the length of JL?
    14·2 answers
  • PLEASE HELP ME <br>Multiply the monomials: <br><br>a2x5b, −0.6axb2 and 0.6a2b3
    9·1 answer
  • Which of the following relations is not a function?
    8·2 answers
  • Which correctly describes a cross section of the right rectangular prism if the base is a rectangle measuring 15 inches by 8 inc
    6·2 answers
  • If one song is $50 and i have $17000 how many songs can i buy​
    6·2 answers
  • Solve for a:<br> -3a + 8 = 14
    14·1 answer
  • Please help me with this
    7·1 answer
  • Find the inequality represented by the graph?
    9·2 answers
  • Round to the nearest hundredth (2 decimal places) when necessary
    12·1 answer
  • A table is made using the following two patterns.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!