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
bixtya [17]
3 years ago
12

Two bikers simultaneously started towards each other from two cities that are 232 km apart. They met 8 hours later. What was the

speed of the second biker if the first one was travelling at a speed of 13 km/h?
Mathematics
1 answer:
Ymorist [56]3 years ago
5 0
First we need to determine how far the first biker was able to go. 
distance = 13(8) \\ distance=104
This means that the first biker was able to travel 104km, so now we need to find out how far the second biker was able to go. Becasue they both had to meet, we need to subtract the first bikers distance from the total distance between the cities. 
distance = 232-104 \\ distance = 128
Meaning that the distance that the second biker traveled 128km.  
Because speed =  \frac{distance}{time} we just need to plug the second bikers stats into the equation to find out their speed. 
speed =  \frac{128}{8}  \\ speed=16 _{km/h}
You might be interested in
3^-2 expanded form
Zanzabum

3^(-2) = 1/(3^2) = 1/(3*3) = 1/9

The rule used here is x^(-y) = 1/(x^y) to make the exponent positive.

3^2 turns into 3*3 because the exponent 2 tells us how many copies of the base '3' to multiply out.

5 0
3 years ago
How do I simplify this exponent problem???
Nikolay [14]

Hello from MrBillDoesMath!

Answer:

(3/4) a^(-5)b^(-3)c^2


Discussion:  

(18 a^-3b^2c^6)/ (24 a^2b^5c^4) =

(18/24) a^ (-3-2) b^(2-5) c^(6-4) =

                  as  a^-3/a^-2 = a ^ (-3-2) = a^(-5), for examples

(3/4) a^(-5)b^(-3)c^2


Thank you,

MrB

8 0
3 years ago
easy algebra question below first correct answer gets brainliest, if you put a link i will report and block
boyakko [2]

Answer:

6x²

Step-by-step explanation:

3x×2x=6...... then an x²

Therefore answer is 6x²

3 0
2 years ago
Use the following graph of the function f(x) = −3x4 − x3 + 3x2 + x + 3 to answer this question: graph of negative 3 x to the fou
Serggg [28]

Answer:

The average rate of change from x=0 to x=1 for f(x) is 0.

Step-by-step explanation:

We are given the function f(x)=-3x^{4}-x^{3}+3x^{2}+x+3.

Now, the rate average rate of change of a function from y=x_{1} to y=x_{2} is given by \frac{f(x_{2})-f(x_{1})}{x_{2}-x_{1}}.

As, we need the rate of change from x = 0 to x = 1.

So, we will find the values of f(0) and f(1).

i.e. f(0)=-3\times0^{4}-0^{3}+3\times0^{2}+0+3 i.e. f(0)  = 3

and f(1)=-3\times1^{4}-1^{3}+3\times1^{2}+1+3 i.e. f(1)=-3-1+3+1+3 i.e. f(1) = 3

Thus, the rate of change from x=0 to x=1 is \frac{f(1)-f(0)}{1-0} i.e.  \frac{3-3}{1-0} i.e. 0

Hence, the average rate of change from x=0 to x=1 for f(x) is 0.

7 0
3 years ago
Solve <br> x=1001+75.55x
gregori [183]

x=1001+75.55x

Simplify

x=<span><span>75.55x</span>+1001</span>

Subtract

x−<span>75.55x</span>=<span><span><span>75.55x</span>+1001</span>−<span>75.55x</span></span>

−<span>74.55x</span>=1001

Divide

<span><span>−<span>74.55x/</span></span><span>−74.55 = </span></span>

<span><span><span><span><span>1001/<span>−74.55</span></span><span><span>your answer is:</span></span><span>x=<span>−<span>13.42723</span></span></span></span></span></span></span>


8 0
3 years ago
Read 2 more answers
Other questions:
  • What fraction would represent the number 3.45
    15·1 answer
  • What is the MAD of the number of goals scored which was 24 in 10 games with a mean of 2.4?
    14·1 answer
  • Help? I will mark brainliest!
    9·2 answers
  • A new restaurant with 134 seats is being planned. Studies show that 62​% of the customers demand a​ smoke-free area. How many se
    6·1 answer
  • Mary constructed ΔJKL from two angles and their included side. The angles were ∠JKL and ∠KLJ. What was the included side?
    15·2 answers
  • Need help to solve this problem 5 3/5 x 8 2/3 =
    8·1 answer
  • What is the estimated perimeter of an ellipse if the major axis has a length of 15 ft and the minor axis has a length of 7.5 ft?
    11·1 answer
  • What is the formula for perimeter of a square​
    11·2 answers
  • Find the unit price of 8 mugs that cost $38.32 total
    7·2 answers
  • A farmer grows two types of grain in his fields. He has a seed budget of $15,000.00 and has spent $5,800.00 to plant wheat seed
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!