answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Taya2010 [7]
2 years ago
10

18% of the the students at a school are in year 8 and 16% of the students are in year 9. If the school has 126 tera 8 students,

determine the number of year 9 students.​
Mathematics
1 answer:
yarga [219]2 years ago
5 0

Answer:

112

Step-by-step explanation:

The general form of all percentage questions is: the chunk= (some percentage) (of the whole), or c=p*w

We know that 18% of students are 8th grade and that is 126 students, so p = 0.18 and c=126 (126 students are 18% of the whole school)

126 = (0.18)w, divide both sides by 0.18

126/(0.18) = w = 700

9th graders are 16% of the school or 16% of 700 students

c = (0.16) 700 = 112 students

You might be interested in
Shelley sells 5 bone-shaped treats for $3.50. How much should she charge for a package of 12 treats?
kondaur [170]
She will be charged $42
8 0
2 years ago
Read 2 more answers
At the snack bar, hot dogs cost $4 each and bottled water costs $2 each. In the first business hour of the day, less than $12 wo
lisabon 2012 [21]
<u><em>Answers:</em></u>
(2,1)
(1,3)

<u><em>Explanation:</em></u>
Assume that the number of hot dogs is x and the number of water bottles is y.
<u>We are given that:</u>
1- cost of hot dog is $4
2- cost of water is $2
3- total profit was less than $12

<u>This means that:</u>
4x + 2y < 12

<u>We will check the options that satisfy the above inequality:</u>
<u>Option 1: (-1,5):</u>
This option is rejected as we cannot sell -1 hot dog

<u>Option 2: (0,6):</u>
4x + 2y = 4(0) + 2(6) = 12
12 is not less than 12
This option is incorrect

<u>Option 3: (2,1):</u>
4x + 2y = 4(2) + 2(1) = 8 + 2 = 10
10 is less than 12
This option is correct

<u>Option 4: (1,1.5):</u>
This option is incorrect as we cannot sell 1.5 bottle of water

<u>Option 5: (1,3):</u>
4x + 2y = 4(1) + 2(3) = 4 + 6 = 10
10 is less than 12
This option is correct

<u>Option 6: (2,2):</u>
4x + 2y = 4(2) + 2(2) = 8 + 4 = 12
12 is not less than 12
This option is incorrect

Hope this helps :)
5 0
2 years ago
Read 2 more answers
the trinomial x2 bx c factors to (x m)(x n). if b is negative and c is positive, what must be true about m and n?
galina1969 [7]

For c to be positive, and for b to be negative, m must be negative and n must be negative.


X^2 - bx + c = (x - m)(x - n).

c is the product of m and n. If both m and n are positive, c would be positive. However b is the sum of m and n, therefore to make b negative, both m and n must be negative to ensure that the product of m and n is positive


7 0
2 years ago
Read 2 more answers
Jerry takes trail max on Hikes. a package of dried apricots weighs 49.5 ounces. a package of sunflower seeds weighs 45 ounces. J
Marianna [84]
Apricots has .75 ounces more than sunflower seeds
4 0
2 years ago
Drag the tiles to the correct boxes to complete the pairs. A group of people were surveyed, and the data about their age and hem
SVEN [57.7K]

Answer: 0.25 = the probability that a person in the 25-35 age group has a hemoglobin level less than 9.

0.47 = the probability of a person older then 35 years has a hemoglobin level less than 9.

0.28 = the probability that a person is older than 35 has a hemoglobin level between 9 and 11.

0.50 = the probability that a person younger than 25 has a hemoglobin level above 11.

Step-by-step explanation:

I did this on plato. It was right!

#platolivesmatter

4 0
2 years ago
Other questions:
  • A cell phone service provider charges customers a fixed rental charge and a call charge based on the number of call minutes. The
    14·2 answers
  • A radio station is having a promotion in which every 12th caller receives a free concert ticket and every 15th caller receives a
    14·2 answers
  • There were 324 adults surveyed. Among the participants, the mean number of hours of sleep each night was 7.5 and the standard de
    15·2 answers
  • A drawer of loose socks contains 2 red socks, 2 green socks, and 6 white socks. Which best describes how to determine the probab
    12·2 answers
  • If 18000 is put aside in a money market account with interest reinvested monthly at 2.3% find the time required for the account
    5·1 answer
  • Jessie's daughter went to Target and bought $1 or $2 items from the One Spot area. She wants to spend less than $20 at Target
    7·2 answers
  • Juan purchased an antique that had a value of $200, at the time of purchase. Each year, the value of the antique is estimated to
    14·1 answer
  • Carmen's puppy weighs 9 pounds. Her kitten weighs 74 ounces.
    13·1 answer
  • The organic garden at a restaurant is rectangular in shape and has a perimeter of 84 feet. If the length lof the garden is 24 fe
    11·1 answer
  • Most states categorize possession of cocaine charges by weight. Possessing less than a gram will result in the lowest level of f
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!