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3 years ago

Colleen rode her bicycle 9.5 miles in 0.8 hours what was her average speed in miles per hour

Mathematics

2 answers:

Irina-Kira [14]3 years ago

7 0

9.5÷8=1.1875 (distance covered in 0.1 hour)
1.1875 ×10 =11.875

Luba_88 [7]3 years ago

6 0

Well what you wanna do is you want to divide 0.8 by 9.5.
9.5/0.8= 11.875
The answer is 11.875 mph

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umka21 [38]

Answer:

C. They most likely used an observational study asking students to keep track of their TV habits and weight.

A. This is an experiment because a treatment was applied to a group.

Step-by-step explanation:

According to our question:

1. The study concluded that there is a relation between watching TV and the weight gain in college freshmen.

Now, this is possible when a group of college students were asked to participate to watch TV for more than 1 hour for a specific amount of time and have a record of their weights.

So, the study is an observational study where the habits and weights of college students were observed.

Hence, option C is correct.

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3 years ago

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4 years ago

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3 years ago

After t seconds, a ball in the air from the ground level reaches a height of h feet given by the equation h= 144t-16t^2 . After

Effectus [21]

H=0
Therefore:
144t-16t²=0
t (144-16t)=0
We have two equations:
1)
t=0 (when the ball is released)
2)
144-16t=0
-16t=-144
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3 years ago

Each morning a gardener uses 25 gallons of water from a barrel. Each afternoon, she adds 15 gallons of water to the barrel. By h

mr_godi [17]

Given :

Each morning a gardener uses 25 gallons of water from a barrel.

Each afternoon, she adds 15 gallons of water to the barrel.

To Find :

By how much has the volume of water in the barrel changed after 5 days.

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Amount of of water used from the barrel per day is :

A = 25 - 15 gallons

A = 10 gallons

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V = A × 5 gallons

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V = 50 gallons

Therefore, volume of water in barrel is changed by 50 gallons.

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