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Monica [59]
3 years ago
7

Convert 86 to a z-score

Mathematics
1 answer:
Semmy [17]3 years ago
5 0

Answer:

Step-by-step explanation:--0.9

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A 3% salt solution weighing 100g represents 100g of water in which 3g of salt is dissolved (=3/10). What amount of salt would be
Nadya [2.5K]

Answer:

There would be 12 g of salt (12.3 g actually but rounded) and 88g of water (88.7 g actually but rounded)

Step-by-step explanation:

From the question, a 14% salt solution means 14g of salt in 100g of water.

What this means is that, the fraction of salt to water in the solution would be 14/100 which is same as 7/50

Now, we want to know the amount of salt and the amount of water in a 100g of 14% salt solution.

Looking at the ratio salt to water, we have 7 to 50

For every 50 parts of water, there are 7 parts of salt.

So the ratio of both is 7:50

For salt, the amount in grammes present will be ;

7/(50 + 7) * 100g = 7/57 * 100 = 12.3 g or 12g to the nearest whole number

The amount in grammes of water present will be ;

50/(50 + 7) * 100g = 50/57 * 100 = 87.7g or 88g to the nearest whole number

5 0
3 years ago
F(x)=4x <br> 2<br> +2x+6 How many distinct real number zeros does f have?
hoa [83]

Answer:

It has 0 distinct real number zeros. The function does not touch the x-axis

6 0
3 years ago
Read 2 more answers
A mine extracts 2 metric tons of coal in an hour. The mine uses 14 ton of the extracted coal every hour to generate electricity
olga nikolaevna [1]

This sounds like a very poor business model right from the beginning. 
The mine continuously operates at a loss, and it has nothing to sell.

If it uses 14 tons an hour just to keep running, and it produces 2 tons
an hour, then it doesn't take a business genius to point out that this
operation is rapidly digging itself straight into the ground.

I'm guessing that there was a major mistake made during the copying
of the problem.


6 0
3 years ago
Read 2 more answers
How do you simplify 4(x+3)+2x+8
ss7ja [257]

Answer:

4x+12+2x+8

4x+2x=6x. 12+8=20

=6x+20

7 0
3 years ago
A rectangular carpet has a perimeter of 274 inches. The length of the carpet is 95 inches more than the width. What are the dime
GrogVix [38]

Answer:

Length: 116

Width: 21

Step-by-step explanation:

Let's say that the width of carpet is x. If the length of the carpet is 95 inches more than the width, then let's say that the width is x + 95.

Since we are solving for the perimeter, you have to multiply the width and the length(x and x + 95) by two.

So,

2x + 2x + 190 = 274.

Simplify this and you get:

4x= 274 - 190

4x = 84

x= 21

So, the width is 21. This means that the length is 21 + 95.

21 + 95 = 116

4 0
3 years ago
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