1answer.
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
garri49 [273]
3 years ago
10

Students who attend Washington Middle School are either in seventh or eighth grade.

Mathematics
1 answer:
IgorLugansk [536]3 years ago
3 0

Answer:

There are 1240 students at Washington middle school.  

Step-by-step explanation:

Percentages and Portions

We can find portions of a whole by correctly managing the percentages of each part. We know 25% of all students at Washington middle school were on the honor roll. From that portion, 60% of the students are seventh graders. That means 40% of the 25% are eight graders, i.e. 40*25%=10% were from eight grade.

We have 10% of all students are 124, thus the number of students are 124/10%=1240

There are 1240 students at Washington middle school.  

Let's test the answer. 25% of 1240 students are on the honor roll, which is 310 students. 40% of 310 students are from 8th grade, 40%*310 = 124 as stated in the problem

You might be interested in
Given the following functions f(x) and g(x), solve (f ⋅ g)(3) and select the correct answer below:
Ksenya-84 [330]
I believe you may have the order incorrect. If we were looking at g(f(x)) the answer would be 47. We would get this by sticking the 3 in for x in f(x) and solving, which would give us 48. We would then stick that answer in for x in the g(x), giving us 47. 

In its current order the answer would be 28. 
6 0
3 years ago
Is 7/20 and 0.07 equivalent numbers
IceJOKER [234]
\frac{7}{20}=0.35 \\ 
 \\  \frac{7}{100}=0.07 \\ 
 \\ Solution: No \ they \ are \ not \ equivalent \ fractions \\
7 0
3 years ago
Read 2 more answers
A group of 570 students were surveyed about the courses they were taking at their college with the following results:
garri49 [273]

Answer:

The number of students who took English and History, but not Math is 143.

Step-by-step explanation:

Denote the subject choices as follows:

<em>M</em> = a students was taking Math

<em>E</em> = a students was taking English

<em>H</em> = a students was taking History

The data provided is as follows:

N (M) = 257

N (E) = 282

N (H) = 323

n (M ∩ E) = 154

n (M ∩ H) = 171

n (E ∩ H) = 143

n (M ∩ E ∩ H) = 80

Consider the Venn diagram below.

From the provided data and the Venn diagram the value of the set E and H minus M is 143.

Thus, the number of students who took English and History, but not Math is 143.

7 0
2 years ago
What is the area, in square cm, of a rectangle with a length of 5.6 cm and a width of 6 cm? *​
julsineya [31]

Answer:

I think its 30.36

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Are 11.3 meters the same as 113 centimeters
galben [10]
No, it’s not the same.
8 0
2 years ago
Other questions:
  • Circle geometry help
    12·1 answer
  • Which of the following statements has the same truth value as the statement "If it is Friday, then Bruce has beans for supper."?
    7·2 answers
  • Julian used these steps to solve the equation 9x=?6+3(3x+2) 9 x = - 6 + 3 ( 3 x + 2 ) . Which choice describes the meaning of hi
    9·2 answers
  • What is the value of X? Enter answer as a decimal...
    8·1 answer
  • Shania is buying a car. She has narrowed her choice down to three cars: a sedan, a hatchback, and a wagon. She uses a spinner di
    6·1 answer
  • Someone help plz make sure it’s right:) will make brainiest
    7·1 answer
  • For each logarithmic equation, write an equivalent equation in exponential form
    13·1 answer
  • 2+2+2+2+2+2+2+206+737472
    15·2 answers
  • A bookstore pays $4.50 for a novel. The percent of markup is 45%. Find the novel's selling price. 55 TE OME TELE mm​
    14·1 answer
  • Write the equation of the line that has a slope of 3/4 and yintercept of -7
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!