Mathematics Middle School

A company that makes​ hair-care products had 400 people try a new shampoo. Of the 400 people, 16 had a mild allergic reaction. What percent of the people had a mild allergic​ reaction?

Answers

Answer 1

Answer:

4% of people had a mild allergic reaction

Step-by-step explanation:

16 is 4% of 400

[tex]y = p\% \times x[/tex]

[tex]p\% = y \div x[/tex]

[tex]p\% = 16 \div 400[/tex]

[tex]p = 0.04[/tex]

Convert decimal to percentage

[tex]p\% = 0.04 \times 100 = 4\%[/tex]

Answer 2

My Answer:

I am pretty sure it would be around 4%

:)

Related Questions

what is the degree of this trinomial? please help
show the work if you can

Answers

The degree is of this trinomial is 8
the degree would be 8
(sorry if that’s wrong)

The local water slides have 90 employees, of which 80% are temporary. How many temporary employees are there?

Answers

If 80% of 90 were temerary, 75 would be the answer
It would be 78 Explanation: Could be wrong because I thought of the answer really quickly but because 80% of 100 is 80, and blah blah blah 8 * 9 is 72 oh wait!!!!! It’s 72!!!

2. Without solving the systems, explain why the following systems must have the same solution.

System (a): 4x-5y= 13 system (B): 8x- 10y= 26
3x+6y= 11 x-11y= 2

Answers

because when you simplify system b, it becomes the same as system A
System multiplied by 2= system b

Help would be much appreciated, thanks!

Answers

Answer: D 32

Step-by-step explanation:

Logan reads for 1 3/4 hours everyday. He finishes an entire book in 8 days. How many hours in all did it take Logan to complete the book?

Answers

Answer:

14

Step-by-step explanation:

basic math ..............

Answer: 14 hours
Explanation: Multiply 1 3/4 by 8 and it is 14

Of the 350 solitaire games that Jay played, he won 154 times. What percent of the games did Jay win?

Answers

Step-by-step explanation:
To find the answer we first have to find the value of each percent, to do this we divide 100 by 350, that gets us approximately 0.286. We know that he won 154 of them we then multiply 154 by 0.286 to get the percentage of games he won and we get 44.044.

Answer:

44%

Step-by-step explanation:

154 ÷ 350 x 100 is 44%

hope this helps

Sara can travel 23 feet in 11 hours. Please calculate Sara's rate of speed. (round to 2 decimal places)

A. 2.09 feet per hour

B. 0.21 hours per feet

C. 2.09 hours per feet

D. 0.21 feet per hour

Answers

Answer:

I think is C sorry if i'm incorrect

Step-by-step explanation:

Answer:

A. 2.09 feet per hour

Step-by-step explanation:

Speed= Distance/Time

All you have to do is divide the time by distance

like this:  23 ÷ 11

The answer would be 2.090909090909091, but since you are rounding the answer would be A. 2.09

But don't forget that you want to know how far she is going per hour

What is 3/4 of 2/3

WILL GIVE BRAINLY HURRY PLZ

Answers

Answer:

1/2

Step-by-step explanation:

Answer:

0.5

plz refer to the picture

Mark as brainliest

Plsssssssss Help!!!!!
Click to show whether each equation represents a linear or nonlinear function.

Answers

Answer:

[tex]y = x^2 + 1[/tex] -- Nonlinear

[tex]y = x^1 + 2[/tex] -- Linear

[tex]y = x[/tex] --- Linear

[tex]y = 5(x + 2)[/tex] --- Linear

[tex]y = x(x)[/tex] --- Nonlinear

Step-by-step explanation:

Required

Categorize each function as linear or nonlinear

First, it should be noted that a linear function has the form [tex]y = mx + b[/tex].

So, the following question will be solved based on the above form

(a):

[tex]y = x^2 + 1[/tex]

This can not be expressed as [tex]y = mx + b[/tex]

Hence, it is a nonlinear function

(b):

[tex]y = x^1 + 2[/tex]

This can be further expressed as:

[tex]y = x + 2[/tex]

This has the same form as [tex]y = mx + b[/tex].

Hence, it is a linear function.

(c):

[tex]y = x[/tex]

This can be further expressed as:

[tex]y = x + 0[/tex]

This has the same form as [tex]y = mx + b[/tex].

Hence, it is a linear function.

(d):

[tex]y = 5(x + 2)[/tex]

This can be further expressed as:

[tex]y = 5x + 10[/tex] -- by opening the bracket

This has the same form as [tex]y = mx + b[/tex].

Hence, it is a linear function.

(e):

[tex]y = x(x)[/tex]

This can be further expressed as:

[tex]y = x^2[/tex] --- by opening the bracket

This can not be expressed as [tex]y = mx + b[/tex]

Hence, it is a nonlinear function

PLS HELP!! A group of friends went out to eat. The bill came to $75.50 and was subject to 8.25% sales tax. The group then added 18% tip to the total after tax. What was the total the group paid, including sales tax and tip?

Answers

Answer:

The total bill will be $66.81.

Answer: $96.44 would be your total after adding all of the tax.

Step-by-step explanation: How I find percentages is by putting them into fractions.

8.25/100    next to ?/75.50

If you put these fractions next to each other written down, with 8.25 over 100 and the unknown percent above the 75.50, you can then multiply 8.25 and 75.50.

8.25x75.50=622.875

next you divide 622.875 by 100

622.875/100=6.22875

you will need to round up at the hundreths spot. So the amount of tax you would pay is $6.23

Next you know that you need to find 18 percent of all of that so now you need to add the 6.23 and 75.50

6.23+75.50=81.73

now find 18 percent of 81.73

18/100     ?/81.73

multiply 18 and 81.73

18x81.73=1,471.14

divide

1,471.14/100=14.7114

round to the nearest hundreth

14.71

next add 14.71 to 81.73

14.71+81.73=96.44

So 96.44 is your total.

Celina built a model of a triangular pyramid. The model's height is shown in the diagram.



If the volume of Celina's model is 96.37 cubic centimeters, what is the area of the triangular base in square centimeters?

Round answer to the nearest hundredth.

12.85 square centimeters

4.28 square centimeters

38.55 square centimeters

240.925 square centimeters

Answers

The answer is most likely 12.85

ok so I now fix it, can you help me?

Answers

Answer:

1 80%

2 80%

3 80%

Step-by-step explanation:

Answer:

1st Question is: 80%

2nd Question is: Option 'D'

Step-by-step explanation:

Both make a matter of 80%, the first one is because 4/5 in radical form is 80/100, The second answer is because 462 + 378 = 840, 840 simplified with 1,050 makes 4/5 = 80/100 or 80%

ANSWER CORRECTLY FOR BRAINLIEST
Simplify:

Answers

Answer: 8 3/4
Explanation: honestly there’s a seamos scientific calculator that I’ve been using for this type of stuff for years

Answer:

35

4

=8 and 3 over 48

3

4

=8.75

Step-by-step explanation:

help meee pleasee

2. A manager ordered large cement spheres to place on the sidewalk outside his store. The diagram below shows one of the cement spheres. Which is the best estimate for the volume of cement used to make one of the spheres? *

A. 13.6 cubic feet
B. 18.3 cubic feet
C. 24.4 cubic feet
D. 54.3 cubic feet

Answers

Answer:

What I got is A. 13.6

Step-by-step explanation:

i did math in journal.

your answer is 13.6 cubic feet man.

Investors buy a studio apartment for $240,000. Of this amount, they have a down payment of $60,000. Their down payment is what percent of the purchase price?

Answers

Answer:

60,000/240,000×100=25%

Answer:

it is 25% I think :)))))))

The table below shows the height and the hand span of five students.


Which pattern of association best describes the relationship between the height and the hand span?





A. no association

B. nonlinear association

C. positive linear association

D. negative linear association

Answers

Positive linear association because increase in two inches higher increase hand span by .5 inches

There is no association between the height and the hand span.

We can only establish an association when there is a consistent rate of increase or decrease between two variables. The increase or decrease is linear when they occur smoothly.

As we can see, we can not establish any particular relationship between the height and the hand span hence we conclude that there is no association between them.

Learn more: https://brainly.com/question/165414

PLEASE ANSWER AS FAST AS POSSIBLE!! A group of friends went out to eat. The bill came to $75.50 and was subject to 8.25% sales tax. The group then added 18% sales tax to the total after tax. What was the amount of sales tax the group paid?

Answers

$13.59 of sales tax!!!!
$13.59 sales tax the group paid

Rosa and her friends are eating out for dinner. The bill was $45.80. They want to leave a 20% tip. How much is the total bill, including the tip?

Answers

The answer is $54.96 the 20% tip is $9.16 :)

Answer:

$54.96

Step-by-step explanation:

20% of $45.80 is 9.16 so, 45.80+9.16=54.96

Hope this helps! :)

Candace is 10 years old. Her brother, Jacob, is 45% older than her. How old is Candace's brother?

Answers

Answer:

Jacob is 14.5

Candace is 10 and Jacob is 45% older

45% of 10 is 4.5

10+4.5 is 14.5

Jacob is 14 and 6 months old

PLS HELPP MEE The question is in the picture below

Answers

Im pretty sure it would be $60. If im wrong im sorryyyyy
$60 is the correct answer

please answer if you can i just can't understand:(

Answers

Your answer is 1176!!!!
1176 is the answer.

Can you help me with number 6?

Answers

I can’t see it sorry. Try to do it again and I may help you
1/-12. Hoped that helped

If snow accumulates at a rate of 2 inches every 3 hours, how many hours will it take to accumulate 2 feet of snow?​

Answers

Answer:

12hours

Step-by-step explanation:

24inch-2feet

24/2=12

Correct answer:
12 hours !!

Explanations:
2 feet = 24 inches
2 inches per 3 hours
24 divided by 2 = 12

problems.
Enter your answer as indicated on each problem.
5/8+ 5/6
Enter mixed number

Answers

Answer:

1 11/24

Step-by-step explanation:

Divide using long division. The whole number portion will be the number of times the denominator of the original fraction divides evenly into the numerator of the original fraction, and the fraction portion of the mixed number will be the remainder of the original fraction division over the denominator of the original fraction.

Help please!! Will mark as brainliest

Answers

Answer:

b

Step-by-step explanation:

i guess

I think it’s letter B,I guess

please help me with this

Answers

THe correct answer is 5 hours

Answer:

5 hours

Step-by-step explanation:

What persent is 3/250 also pls enculde expliantion

Answers

1.2%

3/250 = 0.012

0.012 x 100 = 1.2%

Can someone please help me on this?

Answers

The slope issssss 2

Answer:

slope: 2 y:(0, 3)

Step-by-step explanation:

Plz help ASAP! 10 points

Answers

there’s this app called Socratic that you can use. It’s like this one but it’s a little different

A Swimming Pool is 50 feet long. Rima swims a distance of 2.5 feet every second. She wants to know how many seconds it takes her to swim across the pool.

Answers

It would take 20 seconds
I believe it would take her 20 second
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