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
Serjik [45]
2 years ago
10

Chris and his brother leave the same point and run in opposite directions on a straight road. After running for 3 Hours they are

18 miles apart. If Chris runs an average of 1 mph fast than his brother what is chris's average speed
Mathematics
1 answer:
ikadub [295]2 years ago
8 0
<span>Chris' average speed is 3.5mph: Lets take Chris' brother speed = B then Chris speed = (B+ 1) mph-------given in the question and: The average speed for covering 18 miles= chris' average speed + his brother's average speed = (B+ 1) + B since Speed = Distance covered / time taken then average speed for 18 miles can also be found by: 18 miles/3 hours = 6 miles per hour then we have; (B+ 1) + B = 6mph (B +1) = (6-B) B+B = 6-1=5 2B=5 B=5/2=2.5 mph (this is Chris' brother average speed) Hence Chris' average speed is = B+1= 2.5+1= 3.5mph</span>
You might be interested in
Someone Plz help ASAP!!!
Butoxors [25]

Answer:

c=3/16

n=4/3

Step-by-step explanation:

6 0
3 years ago
What is the quotient of - 48 ÷ -6 , answer and show how to solve
KonstantinChe [14]
The quotient is -8. This being because when a negative number is in parentheses, the negative will be the opposite: Positive. And we know 48 divided by 6 is 8. So the answer is B.
7 0
3 years ago
Read 2 more answers
G(x)=(cosθsinθ)^4 what's the differential
natulia [17]

Answer:

sin²2θ. (cos θ sin θ). cos 2θ

Step-by-step explanation:

finding g'(x)

g'(x)

  • (x^n)' = nx^(n -1)

= 4 (cosθsinθ)³ . { cosθ. (sinθ)' + sinθ. (cosθ)' }

  • (cosθ)' = - sinθ
  • (sinθ)' = cosθ

= 4 (cosθsinθ)³ { cosθ. cos θ + sinθ.(-sin θ)}

= 4 (cosθsinθ)³{ cos²θ - sin²θ}

  • cos²θ - sin²θ = cos 2θ
  • 2sinθ cosθ = sin 2θ

= (4 cosθ sinθ)². (cosθ sinθ). { cos²θ - sin²θ}

= <u>sin²2θ. (cos θ sin θ). cos 2θ</u>

4 0
3 years ago
Does the linear equation 2/3(9x+6)=6x+4 have no solution?
lilavasa [31]

Answer:

Read below.

Step-by-step explanation:

2/3(9x+6)=6x+4

6x+4=6x+4

Subtract 6x + 4 from both sides

6x+4-6x+4=0

If you count 0 as an answer then no. If you don't then yes.

8 0
3 years ago
Read 2 more answers
This is really important, if ur not positive dont answer plz...
Ganezh [65]

Answer:

what does this mean

Step-by-step explanation:

3 0
2 years ago
Other questions:
  • The bar graph shows the numbers and colors of cars in a parking lot. The total number of silver and black cars equal the total n
    5·2 answers
  • One number is 4 times as large another. The sum of their reciprocals is 45/4. Find the two numbers
    8·2 answers
  • What is the prime factorization of 154?<br> 2 × 7 × 11<br> 2 × 7 × 13<br> 2 × 5 × 11<br> 2 × 5 × 13
    13·1 answer
  • Suppose Y varies directly with x, and y = 25 when x = 140. what is the value of x when y = 36?
    10·1 answer
  • Fifteen more than half a number is 9
    7·1 answer
  • Can someone help me wit this? ASAP PLZ
    15·1 answer
  • I will give free brainliest :)
    13·2 answers
  • What is 75.4 in expanded form
    14·1 answer
  • Please help me out i have no brain cells !!
    12·1 answer
  • Dividing a whole number by a unit fraction results in a:
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!