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3 years ago

Please help! Giving points :)!

Mathematics

1 answer:

velikii [3]3 years ago

6 0

Answer:

Step-by-step explanation:

3/5 + 1/4 = 0.85

0.85 as a fraction is 17/20

So the answer is C

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Which describes the standard deviation?

aleksandrvk [35]

Step-by-step explanation:

standard deviation is used to measure risks involved in an investment instrument. Standard deviation provides investors a mathematical basis for decisions to be made regarding their investment in financial market. Standard Deviation is a common term used in deals involving stocks, mutual funds, ETFs and others. Standard Deviation is also known as volatility. It gives a sense of how dispersed the data in a sample is from the mean.

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3 years ago

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Triangle MNP has vertices M(5,4), N(5,9), and P(−1,4). What are the coordinates of the image of point P after the triangle is ro

Diano4ka-milaya [45]

Answer:

P' (1, -4)

Step-by-step explanation:

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2 years ago

NEED HELP M<1 <br><br> Use the given information

kondor19780726 [428]

The line should equal 180 degrees, so we would subtract 122 from 180 to get 58 degrees. Since the triangle is equilateral, each angle is the same measure, so I believe m<1 should be 58 degrees.

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3 years ago

Emily added 5 grams of water into 20 grams of 50% salt solution.

atroni [7]

Answers:
She made ___25___ grams of ___40___% salt solution

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The given info "20 grams of 50% salt solution" tells us that we have 10 grams of pure salt
Since 50% of 20 = 0.50*20 = 10
Put another way, we have 10 grams of pure salt out of 20 total so 10/20 = 0.50 = 50% salt solution

The 20 grams of solution updates to 25 grams of solution when we add the 5 grams of water
We don't add any salt, assuming this water is fresh water

So we still have 10 grams of pure salt out of 25 grams now
10/25 = 2/5 = 0.40 = 40% is the new salt concentration

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3 years ago

Last night, the two dinner specials at Bob's favorite restaurant were salmon filet and filet mignon. The restaurant served 70 sp

julia-pushkina [17]

Based on the given parameters, the number of filet mignon the restaurant served is 14

<h3>How to determine the number of filet mignon the restaurant served?</h3>

From the question, the given parameters are:

Dinner specials = salmon filet and filet mignon.

Dinner specials = 70 dinner specials

Salmon filets = 80%

This means that the proportion of filet mignon is

filet mignon = 100%- Salmon filets

This gives

filet mignon = 100%- 80%

Evaluate the difference

filet mignon = 20%

The number of filet mignon is calculated as:

filet mignon = 20% * Dinner specials

Substitute the known values in the above equation

filet mignon = 20% * 70

Express 20% as decimal

filet mignon = 0.20 * 70

Evaluate the product

filet mignon = 14

Hence, the number of filet mignon the restaurant served is 14

So, the complete parameters are:

Dinner specials = salmon filet and filet mignon.

Dinner specials = 70 dinner specials

Salmon filets = 80%

filet mignon = 14