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
skelet666 [1.2K]
3 years ago
13

Kirk's average driving speed is 7 kilometers per hour faster than Thor's. In the same length of time it takes Kirk to drive 450

kilometers, Thor drives only 408 kilometers. What is Kirk's average speed?
Mathematics
1 answer:
alexandr402 [8]3 years ago
3 0

Answer:

x = 816 kilometers per hour.

Step-by-step explanation:

Given the following data;

Distance traveled by Kirk = 450km

Distance traveled by Thor = 408 km

Let the average driving speed of Thor be x.

Translating the word problem into an algebraic equation;

k = x + 6

We know that the time taken to cover a distance by an object with speed is given by the formula;

Time = distance/speed

Substituting into the equation, we have;

408/x = 405/x + 6

Cross-multiplying, we have;

408*(x + 6) = 405*x

408x + 2448 = 405x

408x - 405x = 2448

3x = 2448

x = 2448/3

x = 816 kilometers per hour.

You might be interested in
2/3 ÷ 3/4 simplify the fraction expression
adelina 88 [10]

0.8 is the simplified answer I believe.

3 0
3 years ago
Read 2 more answers
It rained 0.53 inches on Monday.
jok3333 [9.3K]

Answer:

0.33

Step-by-step explanation:

0.53

-0.20

---------

0.33

3 0
3 years ago
Read 2 more answers
What is the average rate of change of the function on the interval from x = 0 to x = 5?
bixtya [17]
The average rate is 3^x/2
8 0
3 years ago
Read 2 more answers
PLZ ANSWER FAST!!!!
lana66690 [7]
0.7154 is the product for 0.98×0.73
5 0
3 years ago
Andrew believes the honor roll students at his school have an unfair advantage in being assigned to the math class they request.
Artist 52 [7]
<span>                                                            Honor roll Not on honor roll Total
Received math class requested        315               64                   379
Did not get math class requested        41               80                   121
Total                                                        356             144                   500 

Honor roll: request granted: 315/356 = 0.88 x 100% = 88%
Not Honor roll request granted: 64/144 = 0.44 x 100% = 44%

Honor roll students were given preference in granting request than those not in the honor roll.</span>
5 0
3 years ago
Other questions:
  • 10 to the 5th power × 10 to the 7th power
    10·2 answers
  • a bag contains 5 red cards numbered 1-5 and 5 white cards numbered 1-5. You choose a card at random. Find the possible outcomes
    9·1 answer
  • What is the shape of the cross section of the cylinder in each situation?
    5·1 answer
  • . A contractor is cutting wood to brace the side of a
    8·1 answer
  • Thinking about 1/4 why is 1/4 equal a quarter and a reference to a dollar
    11·1 answer
  • What is simplified form of the following expression?assume y
    8·1 answer
  • Change.83 to a fraction.
    6·1 answer
  • Consider the line plot below.
    8·1 answer
  • Nancy is checking to determine if the expressions x + 4 + x and 6 + 2 x minus 2 are equivalent. When x = 3, she correctly finds
    15·2 answers
  • Today only, a table is being sold for 134.40 . This is 32% of its regular price. What was the price yesterday?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!