Help ASAPMr. Anthony wants to know how some student athletes are improving in the number of push-ups they can do. These dot plots show the number of push-ups each student was able to do last month and this month. (file attached has an image of dot plots)
What is the increase in the mean number of push-ups from last month to this month?
Please explain what you did and how you did it.
Answers
Increase number in the mean number of push-ups from last month to this month is,
⇒ 7.5
What is mean by Subtraction?
Subtraction in mathematics means that is taking something away from a group or number of objects. When you subtract, what is left in the group becomes less.
Given that;
Mr. Anthony wants to know how some student athletes are improving in the number of push-ups they can do.
Hence, Mean of number of push-ups last month is,
⇒ 10 × 2 + 15 × 2 + 25 × 3 + 35 × 1 / 8
⇒ 160 / 8
⇒ 20
And, Mean of number of push-ups this month is,
⇒ 10 × 1 + 15 × 1 + 25 × 1 + 30 × 3 + 40 × 2 / 8
⇒ 220 / 8
⇒ 27.5
Hence, Increase number in the mean number of push-ups from last month to this month is,
⇒ 27.5 - 20
⇒ 7.5
Learn more about the subtraction visit:
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Answers
Answer:
Benjamin travels 420 m in 100 seconds .
Step-by-step explanation:
Given : The tire of his unicycle has a circumference of 2.8 m.
The tire revolves 1.5 times per second
To Find: What is the distance Benjamin travels in 100 seconds?
Solution :
Since we are given that he wheel makes 1.5 revolutions per second.
It makes revolutions in 100 seconds =
=
Thus it makes 150 revolutions in 100 seconds
Now, Each revolution travels 2.8 m.
So, 15 revolutions it will travel =
=
Thus Benjamin travels 420 m in 100 seconds .
Answer:
420m
Step-by-step explanation:
2.8mx1.5revx100s
Answers
5/1=.20
.20*4=.80
.80+2 is 2.8
Answers
i believe it is -5 over 9
Slope is rise/run. The "rise" in this situation is a downward slope, so the number will be a negative. -8.
The run is 5
the slope is -8/5
Answers
Answers
Answer:
there is no solution
Step-by-step explanation:
Answer:
no solutions
Step-by-step explanation:
Given
f + 7 = f - 3
Given any value for f then f + 7 ≠ f - 3
Hence the equation has no solution
Through solving we obtain
f + 7 = f - 3 ( subtract f from both sides )
0 + 7 = - 3
7 = - 3 ← not possible, thus no solution