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Alexeev081 [22]
3 years ago
13

A leaky pool loses 2 1/4 inches of water each day. Jermaine and Mildred are asked to determine the change in the amount of water

in the pool over 5 days.
Jermaine’s Solution Mildred’s Solution

5(-2 1/4) 5(-2 1/4)
5(-2 -1/4) 5(-2 -1/4)
-10 -1/4 -10 -5/4
-10 1/4 -11 1/4

Which describes the reasoning used to determine whose solution is correct?

A. Jermaine is correct because -10 -1/4 equals -10 1/4.
B.Jermaine is correct because he distributed 5 correctly.
C.Mildred is correct because she multiplied 5 by –2 but not by -1/4.
D.Mildred is correct because she distributed 5 correctly.
Mathematics
2 answers:
Viefleur [7K]3 years ago
7 0

Answer: D. Mildred is correct because she distributed 5 correctly.

Step-by-step explanation:

Since, the loss of water in one day = 2\frac{1}{4}\text{ inches}

⇒ The loss of water in 5 days = 5(2\frac{1}{4})\text{ inches}

⇒ The loss can be written with negative sign,

Thus, the expression that shows the changes in quantity of water in 5 days,

-5(2\frac{1}{4})

=-5(2+\frac{1}{4})

=5(-2-\frac{1}{4})

=-10-\frac{5}{4}

=-10-1\frac{1}{4}

=-10-1-\frac{1}{4}

=-11-\frac{1}{4}

=-11\frac{1}{4}

Since, the above steps are similar to that of Mildred's solution,

⇒ Mildred is correct.

Also, By the above explanation it is clear that jermaine incorrectly distribute 5 in his third steps.

⇒ Option D is correct.

DochEvi [55]3 years ago
5 0
Mildred's solution is correct.

5(-2 1/4) = 5(-2 + -1/4) = 5(-2) + 5(-1/4) = -10 + -5/4 = -10 + -1 1/4 = -11 1/4
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Find an angle between 0 and 2pi that is coterminal with the following angle.<br><br> 32pi/9
never [62]
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Since the given angles are in fraction form, it will help to have 2pi  in fraction form, 2pi=10/5=6pi/3=4pi/2=18pi/9     NOTE: this>(/) stands for over like 1 over 2 EX. 1/2

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Hint: When deciding if you have a number between 0 and 2pi, compare it to the fraction version of 2pi that you've been adding/subtracting.


For 17pi/5...
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Now we have a number between 0 and 10pi/5. So 7pi/5 is the co-terminal angle between 0 and 2pi.

I'll leave the others for you to do. Just remember that you might have to add or subtract  multiple times before you get a number between 0 and 2pi.
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What is the exact value of tan 30° ? enter your answer, as a simplified fraction, in the box?
attashe74 [19]

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6 0
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What is the equation in point slope form of a line that passes through the point (–8, 2) and has a slope of 1/2?
Kamila [148]
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So we simply plug in our given information: 
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Final answer: 
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