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3 years ago

I need the answers for 11-13 please and thank you is you can only do one of them that’s okay with me

Mathematics

1 answer:

Lisa [10]3 years ago

5 0

Answer:

Step-by-step explanation:

11. I can't see the full problem statement, so I'm unable to answer the question.

12. Answer below:

"one half" = $\frac{1}{2}$

"negative five eighths" = $\frac{-5}{8}$

To evaluate the expression, you multiply the two numbers together:

$\frac{1}{2} * \frac{-5}{8} = \frac{1 * -5}{2 * 8} = \frac{-5}{16}$

13. Answer below:

"one third" = $\frac{1}{3}$

"eleven sixteenths" = $\frac{11}{16}$

To evaluate the expression, you multiply the two numbers together

$\frac{1}{3} * \frac{11}{16} = \frac{1 * 11}{3 * 16} = \frac{11}{48}$

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What is 500 divided by 6.7

pishuonlain [190]

$\boxed{ \frac{500}{6.7} = 74.627\ Answer}$

7 0

3 years ago

Find the area of a regular hexagon whose apothem is 1.7 cm and side length is 2 cm.. A. 20.4 cm2. B. 3.4 cm2. C. 6.8 cm2. D. 10.

Kipish [7]

A regular hexagon is composed of 6 regular triangles whose area is equal to half of the product of the apothem and side.
A - triangle = (1/2)(a)(s) = (1/2)(1.7 cm)(2 cm) = 1.7 cm²
Multiplying this area by 6 to get the area of the hexagon gives as the answer which is 10.2 cm². Therefore, the answer is letter D.

5 0

3 years ago

What is 82% of 525?<br> Show work

True [87]

Answer:

430.5

Step-by-step explanation:

1. We assume, that the number 525 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

3. If 525 is 100%, so we can write it down as 525=100%.

4. We know, that x is 82% of the output value, so we can write it down as x=82%.

5. Now we have two simple equations:

1) 525=100%

2) x=82%

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

525/x=100%/82%

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 82% of 525

525/x=100/82

(525/x)*x=(100/82)*x - we multiply both sides of the equation by x

525=1.219512195122*x - we divide both sides of the equation by (1.219512195122) to get x

525/1.219512195122=x

430.5=x

x=430.5

now we have:

82% of 525=430.5

5 0

3 years ago

Read 2 more answers

You need 550 mL of a 50% alcohol solution. On hand, you have a 55% alcohol mixture. How much of the 55% alcohol mixture and pure

vitfil [10]

We need 500 ml of alcohol mixture and 50 ml of water.

<u>Step-by-step explanation:</u>

The 50% concentration of the final solution is a result of mixing the 55% concentration with water, which is 0% concentration. Multiply the concentration of each liquid times the # of ml you will use, add these and divide by the total ml to get 50%

x = the number of ml of the 55% alcohol mixture

y = the number of ml of water

x + y = 550

$\frac{{0.55 x + (0) y }}{550} =0.50$

Again, the 0 above represents the water which is 0% concentration

$\frac{0.55 x}{550}$ = 0.50

0.55 x = 275

x = $\frac{275}{0.55}$ = 500

plug 500 into the equation x + y = 550

500 + y = 550

y = 50

Use 500 ml of the 55% solution and 50 ml of water.

5 0

3 years ago

Please helpppp anyone fast

Anton [14]

Answer:

2, 3, 4

Step-by-step explanation:

Since the question is asking which of the following are functions, lets define what it is first

Function: An equation for one answer for y for every x

This means that every x coordinate can have a y, but multiple x coordinates can have the same y coordinate

Because of this it has to be every one of them except the first one

8 0

3 years ago