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Serggg [28]
3 years ago
14

Which expression calculates the speed in meters per second of an object that travels a distance of 40 m every 10 s?

Mathematics
2 answers:
Evgen [1.6K]3 years ago
5 0

Answer:

i believe that it would be B

Step-by-step explanation:

hope this helps

Mumz [18]3 years ago
3 0

Answer:

A

Step-by-step explanation:

40/10 will give you your answer

40/10=4m/s

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Answer:

the answer is 280

Step-by-step explanation:


5 0
3 years ago
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William runs 5 meters in 20 steps. How many kilometers will he run if he takes 1,000 steps ?
kap26 [50]
This means 5 meters/20 steps = x/1,000 steps. 20 times 50 is 1,000, so 5 times 50 is 250 meters. 5/20 can be also reduced to 1/4 = x/1000. Use cross products rule to get 4x = 1,000. Divided both sides by 4 to get x = 250 meters.
3 0
4 years ago
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The blood mass of a mammal is proportional to its body mass. A rhinoceros with body mass 3000 kilograms has blood mass of 150 ki
coldgirl [10]

Answer:

The equation which equates the two is M  = \frac{B}{20}  = 0.05B

A human with a body mass of 80 kilograms will have a blood mass of 4 kilograms.

Step-by-step explanation:

It is said that the blood mass is proportional to the body mass.

We can say that the blood mass of a mammal is M, and that the body mass of a mammal is B.

Since the two are proportional we can write

M  ∝ B   , or M = kB    where k is the constant of proportionality.

Using the given values for a rhinoceros we can write

150 = k × 3000

Therefore k = \frac{150}{3000} = \frac{1}{20}  = 0.05

Therefore the equation which equates the two is M  = \frac{B}{20}  = 0.05B

A human with a body mass of 80 kilograms will have a blood mass of

= \frac{80}{20}  = 4 kilograms

8 0
4 years ago
Identify the constant of proportionality from the graph. 11 10 9 00 7 6 5 1 2 3 4 5 6 7 8 9 10 11 O A. 4 B. 8 O c. D. 3​
mafiozo [28]

Answer:

A. 4

Step-by-step explanation:

Constant of proportionality (k) = y/x

We can use the coordinates of any point on the line to find k.

Let's use (2, 8)

Constant of proportionality (k) = 8/2

Constant of proportionality (k) = 4

4 0
3 years ago
When 40 is added to the number of miles Karen ran last week, the result is the same as adding 10 to 4 times the number of miles
noname [10]
X+40=4x+10
4x-x=40-10
3x=30
x=10 miles

<em><u>Answer: 10 miles</u></em>
6 0
4 years ago
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