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Mashcka [7]
4 years ago
13

Michael walked 30 meters in 20 seconds how many meters does he walk per second

Mathematics
2 answers:
nataly862011 [7]4 years ago
7 0

Answer:

1.5 meters per second.

Step-by-step explanation

20=20 meters

10/2=5

1.5m/1s

Kipish [7]4 years ago
6 0

Answer:

1.5 m/s or 1.5 meters per second

Step-by-step explanation:

Distance/Time=Speed

30m/20s= 1.5 m/s or 1.5 meters per second

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Charlie estimates his dog weighs 17 lbs. When Charlie weighed his dog, he weighed 20 lbs. What is the percent error of the weigh
amm1812

Answer:

The 15% error  

Step-by-step explanation:

4 0
3 years ago
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Translate the expression: four times the difference of 7 and a number.
ivolga24 [154]

Answer:

4 x (7-x)

Step-by-step explanation:

4 times (multiply) the difference (subtraction) of 7 and a number (seeing as how you don't know that number use a variable, x)

6 0
2 years ago
A toy ball in the shape of a sphere expands and contracts. When it is completely​ closed, it has a diameter of 12.5 inches.Find
lana [24]

The volume of the sphere is 1022.65 \ in^3

Explanation:

Given that the diameter of the toy ball is 12.5 inches

We need to determine the volume of the toy ball.

The radius of the toy ball is given by

r=\frac{d}{2}

r=\frac{12.5}{2}

r=6.25 \ in

Thus, the radius of the toy ball is 6.25 in

The volume of the sphere can be determined using the formula,

V=\frac{4}{3} \pi r^{3}

Substituting the values, we get,

V=\frac{4}{3} \pi(6.25)^{3}

Multiplying, we get,

V=\frac{976.5625 \pi}{3}

Substituting \pi=3.14, we have,

V=\frac{976.5625 (3.14)}{3}

Simplifying, we get,

V=1022.65 \ in^3

Thus, the volume of the sphere is 1022.65 \ in^3

5 0
3 years ago
HELP I NEED HELP ASAP
kumpel [21]

Answer:

I am pretty sure it is 300 (B)

btw nice Samsung laptop

Step-by-step explanation:

8 0
3 years ago
What sort of answer do you expect for the problem below?
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it would be a positive number

Step-by-step explanation:

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4 0
3 years ago
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