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
Crazy boy [7]
3 years ago
10

two cars travel at same speed to different destinations. car A reaches its destination in 24 minutes. car B reaches its destinat

ion in 32 minutes. Car B travels 5 miles farther than car A. How fast do the cars travel?​
Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
3 0

Answer:

The speeds of the cars is: 0.625 miles/minute

Step-by-step explanation:

We use systems of equations in two variables to solve this problem.

Recall that the definition of speed (v) is the quotient of the distance traveled divided the time it took : v=\frac{distance}{time}. Notice as well that the speed of both cars is the same, but their times are different because they covered different distances. So if we find the distances they covered, we can easily find what their speed was.

Writing the velocity equation for car A (which reached its destination in 24 minutes) is:

v\,*\,24\,min=d_A

Now we write a similar equation for car B which travels 5 miles further than car A and does it in 32 minutes:

v\,*\,32\,min=d_A+5\,miles

Now we solve for d_A in this last equation and make the substitution in the equation for car A:

v\,*\,32\,min=d_A+5\,miles\\d_A=v\,*\,32\,min-5\,miles\\\\v\,*\,24\,min=v\,*\,32\,min-5\,miles\\v\,(24\,min-32\,min)=-5\,miles\\v\,(-8\,min)=-5\, miles\\v=\frac{-5}{-8} \frac{miles}{min} \\v=0.625\,\frac{miles}{min}

So this is the speed of both cars: 0.625 miles/minute

You might be interested in
Can you answer these for me ?
vodka [1.7K]

Answer:

B. 4 3/8

Step-by-step explanation:

7/8 X 5 = 4 3/8

6 0
2 years ago
a triangle with a perimeter of 36 inches is dilated with a scale factor of 2. what will be the perimeter of the image
sweet [91]

Answer:

18

Step-by-step explanation:

36/4=9  9/2=4.5  4.5+4.5+4.5+4.5=18

7 0
3 years ago
Say the fraction in unit form. 1/10
Anni [7]

Answer:

One tenth

Step-by-step explanation:

You state the number on top as is.

Numerator:

1 - one

2- two

and so on.

over the denominator

which you state as an ordinal number

2 = halves

3 = thirds

4 = fourths

5 = fifths

etc.

so 1/10 would be one over tenths but you say  one tenth.

5 0
2 years ago
Joshua used two wood beams, PC and QA, to support the roof of a model house. The beams intersect each other to form two similar
Sliva [168]
PR : RC = PQ :  AC

so,

PQ  = 2.8 inches

Hope this helps
7 0
3 years ago
Read 2 more answers
the ages of John and Mary total 27 years. Mary's age plus twice john's age is 40. how old is each person?
son4ous [18]
So
Jon's age=j
mary age=m


m+j=27
m+2 times j=40
m+2j=40
M+j=27
ssubtract j from both sides
m=27-j
subsitute 27-j for m
27-j+2j=40
27+j=40
subtract 27 fromboth sdies
j=13

subsitue
13+m=27
subtract 13
m=14

mary=14
john=13
4 0
3 years ago
Read 2 more answers
Other questions:
  • Find the nth term of this quadratic sequence 4 7 12 19 28
    7·1 answer
  • What is the difference between algebraic expression and algebraic equation?
    6·2 answers
  • What is 8 3/4 divided by 2 1/6 ?<br><br> Express the answer in simplest form.
    8·1 answer
  • Given the inequality below: x + 2y ≥ 10
    7·1 answer
  • A shopper paid $2.52 for 4.5 pounds of potatoes,$7.75 for 2.5 pounds of broccoli,and $2.45 for 2.5 pounds of pears.What is the u
    11·1 answer
  • A basket contains 9 blue ribbons, 7 red ribbons and 6 white ribbons. What is the probability that a ribbon selected at random wi
    15·2 answers
  • PLEASE HELP FAST How much is -1/5 of -1 1/4?
    12·1 answer
  • Write the equation of the line passing through points (2,-2) and (1,0) in slope intercept form.
    8·2 answers
  • Simplify by combining like terms. <br> 12+5t−4+15t+1
    8·1 answer
  • What is your preferred method to construct parallel lines? Explain why your method works by describing what construction propert
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!