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dangina [55]
3 years ago
13

Find the surface area of the triangular prism.

Mathematics
1 answer:
zvonat [6]3 years ago
8 0

Answer:

A

Step-by-step explanation:

608

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A student had 500 milliliters of water in a water bottle. She drank 25% of the water before soccer practice. After practice, she
marta [7]

A student had 500 milliliters of water in a water bottle. She drank 25% of the water before soccer practice. After practice, she drank 1/3 of the remaining water.

​How much water, in milliliters, does the student have left in the bottle?

Answer:

the amount of water the student have left in the bottle is 250 milliliters

Step-by-step explanation:

A student had 500 milliliters of water in a water bottle. She drank 25% of the water before soccer practice. After practice, she drank 1/3 of the remaining water.

​How much water, in milliliters, does the student have left in the bottle?

Before the soccer practice, she drank 25 % of the water

25% of the water = 25% of 500

                             = 25% × 500

                              =\frac{25}{100} ×  500

At the right hand-side of the equation, the two zeros will cancel-out the other two zeros, hence;

                                = 25 × 5

                                 =125

25% of the water = 125 milliliters

From the question, it was said that drank 25% of the water before soccer, this implies that she drank 125 milliliters from the water bottles.

If she drank 125 milliliters of  from a 500 milliliters water contain in the water bottle, then the amount of water left will be 500 ml - 125 ml = 375 ml

This implies that before the soccer practice she had 375 milliliters of water left in the water bottle.

After the practice, she drank 1/3 of the remaining water, which means after the practice she drank 1/3 of 375

1/3 of 375 = \frac{1}{3} × 375 = \frac{375}{3} = 125

After the practice she drank 125 milliliters of water from her 375 milliliters water.

The amount of water she have left after the practice will be;

375 milliliters - 125 milliliters = 250 milliliters

Therefore, the amount of water the student have left in the bottle is 250 milliliters

8 0
3 years ago
A math class's mean test score is 88.4. The standard deviation is 4.0. If Kimmie scored 85.9, what is her z-score
kvv77 [185]

The z-score of Kimmie is -0.625

<h3>Calculating z-score</h3>

The formula for calculating the z-score is expressed as;

z = x-η/s

where

η is the mean

s is the standard deviation

x is the Kimmie score

Substitute the given parameter

z = 85.9-88.4/4.0

z = -2.5/4.0

z = -0.625

Hence the z-score of Kimmie is -0.625

Learn more on z-score here: brainly.com/question/25638875

#SPJ1

5 0
2 years ago
What is the value of x when -3x + 7x = -12?<br> A) -3 <br> B) -6/5 <br> C) 3 <br> D)4/7
oksano4ka [1.4K]

-3x + 7x = -12


You need to add like terms.


4x = -12


Then, you need to divide both side by 4.


x = -3


So the answer is:

A) x = -3

8 0
3 years ago
Read 2 more answers
Find the area of the following triangle. Show your<br>work!​
11111nata11111 [884]

Answer:

man/woman show the triangle

7 0
3 years ago
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What property would you use to find an equivalent expression for 8 + ( 7 + 9)?
marissa [1.9K]

Answer:

Associative Property

Step-by-step explanation:

  1. I would use the Associative Property because it states that you can add any numbers together no matter how they are separated or grouped (with parentheses).
  2. Knowing what we said in step 1, here are some other ways you can write the expression given (they are written in the steps below)
  3. 8 + 7 + 9
  4. (8 + 7) + 9
  5. (8 + 9) + 7

I hope this helps!

4 0
3 years ago
Read 2 more answers
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