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
nadya68 [22]
3 years ago
10

3.) AI 65 kom hr. Alfred can reach home in 50 minutes. At what speed should he drive his car

Mathematics
1 answer:
Yanka [14]3 years ago
8 0

Answer:

He should drive his car at a speed of 81.25 kilometers per hour.

Step-by-step explanation:

With a velocity of 65 kilometers per hour, he reaches home in 50 minutes. What speed he needs to reach home 10 minutes earlier, that is, in 50 - 10 = 40 minutes?

To solve this, we use the relation between inverse proportion variables(as the velocity increases, time needed decreases), that is, a rule of three with line multiplication, instead of cross. So

65 kilometers per hour - 50 minutes

x kilometers per hour - 40 minutes

So

40x = 65*50

x = \frac{65*50}{40}

x = 81.25

He should drive his car at a speed of 81.25 kilometers per hour.

You might be interested in
Which function represents the data
Nady [450]
There is nothing attached
6 0
2 years ago
Read 2 more answers
A sentence for cofficient
sammy [17]
A coefficient is the (big) number in front of a number that tells you how many times you multiply the main number
4 0
3 years ago
Which expression is equivalent to 12+24p
gayaneshka [121]

Answer:

the answer is 'C' bacause you have to multiplied between them

3 0
3 years ago
Bought three boxes totaling 151 book cost 50% more than the other two what was the price of the more expensive book 80 85 90 95
GenaCL600 [577]
Two cheaper books = x
more expensive = 1.5x
so, 2.5x=150
150/2.5=x=60
therefore the more expensive book = 90
7 0
3 years ago
Can two rectangles with the same side lengths be congruent
sveta [45]

Answer:

the angles in squares and rectangles it's always 90° so two squares or two rectangles with same side lengths are congruent.

8 0
2 years ago
Read 2 more answers
Other questions:
  • What is the value of the equation below when a=3 and b=7 <br> a2-2b
    14·1 answer
  • X^2+26x+c<br> find the value of c that makes each trinomial a perfect square
    14·1 answer
  • Which pair of angles are corresponding angles?
    13·2 answers
  • Rob used 4.25 ounces of peanuts,3.4 ounces of pecans,and2.75 ounces of walnuts to make a trail mix.How many total ounces of nuts
    13·2 answers
  • Simplify the following expression. 3x(4x − 3) A. 12x2 + 13x B. 12x2 + 5x C. 12x2 − 5x D. 12x2 − 9x
    11·2 answers
  • SOMEONE HELPPP MEEE OUTTT PLEASEEEE!!!
    10·2 answers
  • Given h(x) = 4x2 - 5x + 4 find h(-5).
    5·2 answers
  • I need help with this ​
    9·1 answer
  • Which expression in equivalent to 12(2n+6) ?
    9·1 answer
  • Given the function g(x) = x2 + 10x + 20, determine the average rate of change of
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!