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
Amanda [17]
3 years ago
13

Samir begins riding his bike at a rate of 6 mph. Twelve minutes later, Chris leaves from the same point and bikes along the same

route at 9 mph. At any given time, t, the distance traveled can be calculated using the formula d = rt, where d represents distance and r represents rate. How long after Chris begins riding does he catch up to Samir?
Mathematics
2 answers:
Pachacha [2.7K]3 years ago
8 0
The answer would be 24 minutes
andreyandreev [35.5K]3 years ago
7 0

Answer: After 24 minutes Chris begins riding so, he catch up to Samir.

Step-by-step explanation:

Since we have given that

Speed of Samir riding his bike = 6mph

Speed of Chris riding his bike = 9 mph

Time taken by Chris be x

Time taken by Samir be x+12

AS we have given that at any given time ,t, the distance traveled can be using the formula " d=rt "

where d means distance and r represents rate.

So, our equation becomes,

9x=6(x+12)\\\\9x=6x+72\\\\9x-6x=72\\\\3x=72\\\\x=\frac{72}{3}=24\ minutes

As there is no need to change mph into miles per minutes as applying both will nullify the effect.

Hence, after 24 minutes Chris begins riding so, he catch up to Samir.

You might be interested in
Find the slope of the line graphed beloW.​
sergey [27]

Answer:

1/2

Step-by-step explanation:

u need to use those red dots

with the dot at the bottom you go 1 square to the right

and then you go 2 squares up

and ur answer is 1/2 and you might want to use rise over run = rise/run

7 0
3 years ago
Will give brainliest, please help
Rus_ich [418]

Answer:

C

Step-by-step explanation:

A triangle always consists of it being 180 degrees. The box on the triangle on angle A depicts that it is a right angle, 90 degrees. And since Angle B is given at 45, angle C must be 45 degrees as well, since 180-45-90 (triangle angles=given angles for A and B) equal up to 45. When the angles beside the right angle is both identical and the same, the sides that correspond with that triangle is also the same. AC is given at 9 feet, and since Angle C and B both have the same angles, AB must ALSO be a 9ft.

Now, since we know the two sides, it is very easy to find BC, or the hypotenuse of the triangle, using the Pythagorean Theorem: a^{2} +b^{2} =c^{2}, where a and b are sides, and c is the hypotenuse (or the long end) of a right triangle.

We can plug both 9s in for a and b since they're both the same, and it should equal to

9^2+9^2=c^2.

9^2 is 9*9, and that is 81. We have two of these so add them together to find 162. Since c^2 is equal to 162, we would need to square root both sides so we can find a number that equals c.

\sqrt{162} =c

We can either plug this into a calculator, and we should get something around 12.72, and that would be the same as C if you plug that value into a calculator.

You can also simplify the radical if you know how to. 162 is 81 times 2 (example) and 81 is 9*9, so we can add that to the outside and 2 is still under the radical. But this would only make sense if you know how to do that.

6 0
2 years ago
NEED HELP NOW 100 POINTS WILL MARK BRAINLIEST PLZ ANSWER ALL 5 PHOTOS BELOW!!!!!!
ira [324]
The answers are as follows:
1-D
2-B
3-C
4-A
8 0
3 years ago
Read 2 more answers
A grasshopper jumps straight up from the ground with an initial vertical velocity of 8 feet per second. After how many seconds w
vlabodo [156]

Answer:

Problem 1 : After 0.25 s

Problem 2 : The squirrel doesn't reach the ground before the nut

Step-by-step explanation:

Problem 1

This is a standard physics problem

The equation that defines the movement of the grasshopper given the initial velocity, and the acceleration is the following

Distance =  Do + Vo*t + 0.5*a*t^2

Where

Do is the initial distance.

(Do = 0, because the grasshopper is on the ground and we choose the reference system there)

Vo is the initial velocity = 8 feet/sec

a is the acceleration that is exerted on the body (in this case a = g = -9.8 m/s^2 = - 32.174 feet per second per second.)

t is the time

We substitute in the equation, and solve for t (time)

Distance =  Do + Vo*t + 0.5*a*t^2

(1 foot)=  (0)+ (8 feet/s)*t + 0.5*(-32.174 feet/s^2)*t^2

Solving this equation, we get that

t = 0.25 s

Problem 2

This problem is similar to the previous one

We apply the same formula

D =  Do + Vo*t + 0.5*a*t^2

But in this case, we are going in the opposite direction, and we have an initial distance.

Do = 27 feet

Vo is the initial velocity of the nut = -6 feet/s

D = 0  (Ground)

We substitute in the equation, and solve for t (time)

(0) =  (27) + (-6 feet/s)*t + 0.5*(-32 feet/s^2)*t^2

t = 1.125 s  <  2s

The nut reaches ground in 1.125 s, so the squirrel doesn't reach the ground before the nut

4 0
3 years ago
Please help!!! ASAP the bottom number is 3 btw.
Nataliya [291]

Answer:

5*3=15

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • In a water treatment plant, water passes through a cone-shaped filter with a height of 4 m and a diameter of 9 m. The water flow
    11·2 answers
  • Write the equation of a line whose slope is -2 and passes through (-1,6). Write the answer in slope-intercept form.
    12·2 answers
  • Container a and b hold 11,875 liters of water altogether. Container b holds 2,391 liters more than container a holds. How much w
    5·1 answer
  • Does the PEMDAS formula always change
    13·1 answer
  • A cake recipe calls for 30 milliliters of water for every 20 milliliters of cooking oil. How many milliliters of water are neede
    12·1 answer
  • Chase collects 27.34 for a fundraiser.Sydney collects 9.83 more than chase.Ally collects 4 times as much as sydney.How much mone
    7·1 answer
  • Find the co-ordinates of the point where the line y = 3x - 8 crosses the y-axis.​
    14·1 answer
  • Is the equation <img src="https://tex.z-dn.net/?f=-2x%5E2%2B8%3Dy" id="TexFormula1" title="-2x^2+8=y" alt="-2x^2+8=y" align="abs
    10·1 answer
  • What is 5378427 divide by 67
    12·2 answers
  • Hi Help me with question 6b) pls
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!