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sergejj [24]
3 years ago
10

Write a real world problem than can be solved using elapsed time. Include the solution and show your work

Mathematics
1 answer:
kow [346]3 years ago
6 0
Don't know if this is what you're looking for but here. Hope it helps.
Sara woke up at 9:00. She has dance practice at noon(12:00) it ends at 2:15. She has to meet her friend Jerry for pizza at 5:30. How much time does she have before dance, at dance, and from dance to dinner?

Kind of hard to follow but first take 9:00 to 12:00. 12-9=3 so 3 hours before dance. Next how long dance is. To get from 12:00 to 2:00 you need 2 hours. to get from 2:00 to 2:15 is 15 minutes. So dance is 2 hours and 15 minutes. After dance until dinner is going to be 2:15 to 5:30. To get to 2:00 to 5:00 is three hours. You need 15 minutes from 15 to 30. So She has 3 hours and 15 minutes from dance to dinner.
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the class mean was 72 with a standard deviation of 4.2. Calculate the z-score (to 2 decimal places) for a person who received sc
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4 0
3 years ago
Worth 20 points look at image! Only gotta do pt1
AveGali [126]

Answer:

y= -1/4x+3/4

Step-by-step explanation:

You are given (-5,2) and x=4

This means that the slope is 4

When finding perpendicular, the slope is the reverse reciprocal of the original slope. The reverse of 4 is -4. The recirprocal is the opposite of -4/1, so it is -1/4.

Slope= -1/4

The slope-intercept form is y=mx+b where you are trying to find b.

Plug in the y value in (-5,2) for y

Plug in the slope for m

Plug in the x value in (-5,2) for x

y=2

m= -1/4

x= -5

y=mx+b

2= -1/4(-5)+b   <u>Plug in everything</u>

2= 5/4+b        <u>Multiply -1/4 and -5</u>

3/4=b             <u>Subtract 5/4 from 2 and you get b</u>

<u />

Since we have b now we can make an equation using it.

y=mx+b         <u>Use the form</u>

y= -1/4x+3/4  <u>Plug in m and b</u>

6 0
3 years ago
Simplify the trigonometric expression.
Mila [183]
Recall that sin²Ф+cos²Ф=1, 
so cos²Ф=1-sin²Ф=(1+sinФ)(1-sinФ)
the (1-sinФ) in the numerator cancel with the (1-sinФ) in the denominator, the result is 1+sinФ
3 0
4 years ago
What is the total surface area??? Please help
DedPeter [7]

Answer:

216

Step-by-step explanation:

8(6) + (10+6+8)(7)

48 + 24x7

48 + 168

216

7 0
3 years ago
WILL MAKE BRAINLIEST! ANSWER AND ILY<br><br> what are the slopes of each line?
Crazy boy [7]

Answer:

Top left is A

Top right is B

Bottom left is D

Bottom right is A

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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