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Reil [10]
3 years ago
13

I'm not sure how to do this please help

Mathematics
1 answer:
IgorLugansk [536]3 years ago
7 0

Answer:

maria will run 1.75 more miles than her goal

Step-by-step explanation:

If you multiply 2.75 to 7 days you will get 19.25. And if you subtract it by 17.5(because that's her goal) you will get 1.75.

So the answer to this question would be:

Maria will run 1.75 more mile than her goal.

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A rectangular gasoline tank can hold 45.0 kg of gasoline when full. what is the depth of the tank if it is 0.450 m wide by 0.900
garri49 [273]
The answer is 0.154 m

Step 1. Calculate the volume of gasoline tank (V) using the known mass (m) and density of gasoline (D).
D = m/V
⇒   V = m/D
D = 719.7 kg/m³
m = 45.0 kg
V = 45.0 kg/719.7 kg/m³ = 0.0625 m³

Step 2. Calculate the depth of the tank (d) using the known volume (V) of gasoline and width (w) and length (l) of the tank:
V = d * w * l
0.0625 = d * 0.900 * 0.450
0.0625 = d * 0.405
d = 0.0625  / 0.405
d = 0.154 m
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3 years ago
Solve the following system of equations.<br> y = 2x + 1<br> y = x2 – 5x + 7
BlackZzzverrR [31]

The answer is x = 2 and y = 3

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2 years ago
"A town has accumulated 2 inches of snow, in the snow depth is increasing by 4 inches every hour. A nearby town has accumulated
zloy xaker [14]
In 4 hours it will be the same
3 0
3 years ago
What of the following best describes the advantage of having data presented in a table over a paragraph
Yuki888 [10]
What are the choices?
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3 years ago
A regression was run to determine if there is a relationship between hours of TV watched per day (x) and number of situps a pers
tino4ka555 [31]

Answer:

19 situps

Step-by-step explanation:

Given that the regression equation to find a  a relationship between hours of TV watched per day (x) and number of situps a person can do (y) was done.

The result was

y = ax+b

y = -1.23x+22.738\\

Correlation coefficient = 0.865

To predict the number of situps a person who watches 3 hours of TV

y = -1.23(3)+22.738

= 19.048

Approximately 19 situps.

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2 years ago
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