MATHEMATICS MIDDLE SCHOOL

What percent of 75 is 10?Which of the following choices can be used to solve this problem?



r = 10 × 75

r = 10/75

p = 10/75

p = 10 × 75

Answers

Answer 1
Answer:

For this case, we want to know what percentage of 75 represents the amount of "10". For this, we make a rule of three:

75 ---------------> 100%

10 ---------------> x

Where the variable "x" establishes the percentage that represents 10 having a base of 75.

x = \frac {10 * 100} {75}\nx = 13.33333333

Thus, 10 represents, approximately 13.3% of 75.

Answer:

The most appropriate option is option B. For the percentage, multiply by 100.
Answer 2
Answer:

⇒ 13.33 percent of 75 is 10

Here we have to find the percentage

of 75 percent to get 10

Let us assume the percent is = x

Therefore,

To find the x percent of 75

Divide x by 100 and multiply it with 75

Then,

⇒ 75x/100

Now equate it to 10

Therefore,

⇒ 75x/100 = 10

⇒ 75x = 1000

⇒    x  = 1000/75

⇒     x  = 13.33%

Hence the percentage is,

⇒     x  = 13.33%

Learn more about the percent visit:

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What is the mean ( average) of the data set: 3/4, 13/5 , 14/10, and 6/24?

Answers

add them all together and divide by the number of variables here there are four and the answer is 1.25 or 5/4
To find the average, we need to add all the data together and then divide by the number of entries on the set (in this case 4).

To add fractions we have to find a common denominator. First we end to make sure all the fractions are reduced as far as possible.

6/24 can be reduced to 1/4.

Now we have denominators of 4, 5, and 10 to work with. All of those are factors of 20 so we will use that as the common denominator. Remember we reduced 6/24 to 1/4.

3/4 × 5/5 = 15/20
13/5 × 4/4 = 52/20
14/10 × 2/2 = 28/20
1/4 × 5/5 = 5/20

Now let's add em up...

15/20+52/20+28/20+520=100/20

100/20= 5

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PLZ HELP ME HURRY!Which inequality best models the situation if variable h is the number of hours Valerie might study each night?



Valerie's goal is to study more than 1 1/4 hours each night.



Which shows the possible number of hours she might study to reach this goal?









A.

h < 1 1/4

and h may be up to 3 hours.








B.

h ≥ 1 1/4

and h may be up to 3 hours.








C.

h > 1 1/4

and h may be up to 30 hours.








D.

h > 1 1/4

and h may be up to 3 hours.

Answers

D, because she wants to study more than 1 1/4 hours. > is the greater sign, It can't be C because there is not 30 hours in a day, It can't be B because she wants to study more than 1 1/4 hours not equal to it. It wouldn't A because thats the less than sign.

Can y'all please help me I need to answer ALL OF THIS ASAP!

Answers

16. 8h = p 17. 288 = 18h, 16 = h. She is making $16/h, so if she works 11 hours making that same amount, 11(16) = p, she would make $176. 18. I’m not sure. 19. 24/60 = 0.4 x 100 = 40%. 20. I’m assuming you already solved it? 21. 30 x 0.63 = 18.9 22. 81 x 0.6 = 48.6 31. 40 x 0.55 = 22. Since the item is on sale for 55% this means the price decreased by $22, so 40 - 22 = 18, so Nicole payed $18. 32. 881.95 x 1.65 = $1455.22 33. 48300 x 1.38 = 66654 34. 442 x 1.35 = $596.7 35. 221/130 = 1.7 x 100 = 170 % This is all I’ll do for now, I’ll probably come back to do more if someone hasn’t by then, but I hope this helped. Just comment back on this if you have any further questions about the questions I answered :)

A cell phone company orders 500 new phones from a manufacturer. If the probability of a phone being defective is 2.9%, predict how many of the phones are likely to be defective. Round to the nearest whole number. 12 phones 15 phones 18 phones 145 phones

Answers

Answer:

15 phones, option B.

Step-by-step explanation:

A cell phone company orders new phones = 500

The probability of a phone  is being defective = 2.9%

2.9% of 500 phones are = (2.9)/(100) × 500

0.029 × 500 = 14.5 rounded to the nearest whole number is 15

The probability of 15 phones are defective out of 500 phones.
500  x 0.029 = 14.5 

answer
about 15 phones 

Which value of a solves the equation

a^-2 = 1/100

Answers

Answer:

a = 10 or a = -10

Step-by-step explanation:

a^-2 = 1/100

We know 100 = 10^2

a^-2 = 1/10^2

We know 1/b^c = b^-c

1/a^2 = 1/ 10^2

Multiply by a^2 on each side

a^2 *1/a^2 = 1/ 10^2 *a^2

1 = a^2/10^2

Multiply by 10^2 on each side

1 0^2= a^2/10^2 * 10^2

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Take the square root of each side

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Answers

The answer to your question would be that 101.7 is the freezing point of phosphorous.
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