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
Norma-Jean [14]
2 years ago
14

The ratio of boys to girls in a class is 4:2. There are 30 students in class. How many girls and boys are there?

Mathematics
1 answer:
koban [17]2 years ago
3 0

Answer:

20 boys, 10 girls

Step-by-step explanation:

4 + 2 = 6

4:6 ⋅ 5:5 = 20:30

2:6 ⋅ 5:5 = 10:30

You might be interested in
Arian is making bracelets. For each bracelet, it takes 1/10 of hour to pick out materials and 1/4 hour to braid it together. How
-Dominant- [34]
Change everything into 10ths as follows:

1/10 + 2.5/10 = 3.5/10 of an hour to make one bracelet. Then change to 20ths so the numerator is a whole number.
Divide your time available by the time it takes to make one.

21
4 = 420= 15 bracelets
7 28
20

(as a whole number there was no fraction or remainder to round off)
7 0
3 years ago
A school newspaper will survey students about the quality of the
Novay_Z [31]
Method 2 is the least biased.

1) vegetarians are a select group, so they might have a certain biased perspective
2) if students are chosen randomly from every grade, all grades are included and there will be a variety of responses
3)not all students dislike the program, so it is an unfair representation
4)only students who have a strong opinion will complete the survey
3 0
3 years ago
Multiply: 2.7 × (–3) × (–1.2). A. –9.72 B. –10.8 C. 10.8 D. 9.72
Vikentia [17]

Answer:  \text{ D) } 9.72

Step-by-step explanation:

Here the give expression is,

2.7 \times(-3)\times (-1.2)

We can write,

2.7 \times(-3)\times (-1.2) = 2.7 \times 3.6  ( because -a\times -b = ab)

2.7 \times(-3)\times (-1.2) = 9.72

⇒ Option D is correct.

6 0
2 years ago
Read 2 more answers
What is the area of this shape?
goldenfox [79]
I got 132 for the area of this shape
6 0
3 years ago
Read 2 more answers
Determine whether the function f(x)= 1/x^2 is even, odd or neither.
gulaghasi [49]

The function f(x)= 1/x^2 is even. Hope that helps!

4 0
2 years ago
Other questions:
  • A florist has 36 red roses and 42 white roses. The florist wants to put an equal number of roses in each centerpiece along with
    6·2 answers
  • Tom is sorting cookies with his little sister Betty. He notices that when he takes a cookie she takes three cookies, when he tak
    15·2 answers
  • Find the total for items costing $149.99 with a sales tax of 5.75%
    11·1 answer
  • Never mind free points and brainlest
    8·2 answers
  • –4g + 5h = 4<br> 8g + 10h = –4
    9·1 answer
  • y is directly proportional to x^3. it is known that =5 for a particular value of x. find the value of y when this value of y whe
    15·1 answer
  • 5. Mark's brother is five years older than Mark.
    11·1 answer
  • Please help as soon as possible
    13·2 answers
  • An office is ordering pizza for two groups. Of the 25 workers in​ Accounting, 32​% want eggplant. The others in Accounting want
    5·1 answer
  • The Bill for dinner at Dave and Busters last night was $62.20. The waiter received an 18% tip. How much of a tip did the waiter
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!