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o-na [289]
3 years ago
14

Justin runs at a constant rate, traveling 17km in 2 hours. Write an equation that shows the relationship between the distance he

runs (d) in kilometers and the time he spends running (h) in hours.
Mathematics
2 answers:
Sladkaya [172]3 years ago
7 0

17 km  / 2 hours = 8.5 km per hour

equation:  d = 8.5h

VikaD [51]3 years ago
5 0

Answer:

d=8.5h

Step by Step Explanation:

I just did Khan Academy.

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A chemical flows into a storage tank at a rate of (180+3t) liters per minute, where t is the time in minutes and 0<=t<=60
Yuliya22 [10]

Answer:

The amount of the chemical flows into the tank during the firs 20 minutes is 4200 liters.

Step-by-step explanation:

Consider the provided information.

A chemical flows into a storage tank at a rate of (180+3t) liters per minute,

Let c(t) is the amount of chemical in the take at <em>t </em>time.

Now find the rate of change of chemical flow during the first 20 minutes.

\int\limits^{20}_{0} {c'(t)} \, dt =\int\limits^{20}_0 {(180+3t)} \, dt

\int\limits^{20}_{0} {c'(t)} \, dt =\left[180t+\dfrac{3}{2}t^2\right]^{20}_0

\int\limits^{20}_{0} {c'(t)} \, dt =3600+600

\int\limits^{20}_{0} {c'(t)} \, dt =4200

So, the amount of the chemical flows into the tank during the firs 20 minutes is 4200 liters.

5 0
3 years ago
tim drives at an average speed of 80km per hour for 3 hours 35 minutes work out how many kilometres tim drives
Virty [35]

Answer:

286 2/3 km

Step-by-step explanation:

Recalling that 1 hour = 60 minutes, we convert '3 hours 35 minutes' to

3 + (35/60) hours, or 3 35/60 hours, or 3.5833 hours.

Since distance = (rate)(time),

the distance driven by tim is (80 km/hr)(3.5833 hrs) = 286 2/3 km

8 0
3 years ago
How would I factor x2 + 13x + 22
lozanna [386]
I hope this helps you

6 0
3 years ago
F(x)=4x <br> 2<br> +2x+6 How many distinct real number zeros does f have?
hoa [83]

Answer:

It has 0 distinct real number zeros. The function does not touch the x-axis

6 0
3 years ago
Read 2 more answers
The following chart shows the number of concert tickets sold and the profit earned. What is the slope of the line through these
Black_prince [1.1K]

Answer:

C.) 4

Step-by-step explanation:

y2 - y1/x2 - x1

m = 160 - 80/60 - 40

m = 80/20

m = 8/2

m = 4/1

m = 4

8 0
2 years ago
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