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
andrew11 [14]
3 years ago
9

There are 30 students in a classroom. The ratio of boys to girls is 2:3.

Mathematics
1 answer:
Arisa [49]3 years ago
8 0
<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷ Split 30 into the ratio 2 : 3

12 : 18

12 / 18 + x = 1/5

Cross multiply:

12(5) = 1(18 + x)

60 = 18 + x

Subtract 18 from both sides:

x = 42

42 girls entered the classroom

<h3><u>✽</u></h3>

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

You might be interested in
12÷3, Create a question or word problem that matches your model.
shtirl [24]

brian has 2 friends over his house. he has 12 cookies and wants to split them evenly amongst them 3. how many cookies does each friend get?

4 0
3 years ago
Read 2 more answers
Question: What is the measure of angle 2?
ad-work [718]

Answer:

56 degrees

Step-by-step explanation:

We know that the angle TWR must be 90 degrees because TWK is 90 degrees and the two angles msut add up to 180. Since we know that TWR=90 degrees and since LWR=34 degrees we do 90-34 so angle 2=56 degrees.

8 0
3 years ago
F(x)=x^5-5x^3+4x<br> How do i factor?
wel

Answer:

x(x+2)(x-2)(x+1)(x-1)

Step-by-step explanation:

Since both terms are perfect squares, factor using the difference of squares formula,]a^{2} - b^{2} = (a+b)(a-b), where a = x and b = 2.

6 0
3 years ago
Find the inner diameter of the washer.
atroni [7]

The inner diameter of the washer is 7/10 inch, this value is gotten by multiplying the path by 2 and subtracting the result from the outer diameter

<h3>Mensuration of Shapes</h3>

Given Data

  • Outer Diameter = 1 inch
  • Path Distance = 3/20 inch

The inner diameter

= Outer Diameter - 2*Path Distance

= 1 - 2*3/20

= 1- 6/20

= 1- 3/10

= 1/1 - 3/10

Find the LCM we have 10

= 10-3/10

= 7/10 inch

Learn more about shapes here:

brainly.com/question/25965491

8 0
3 years ago
A local game store earns a profit of $15.50 for every game they sell. The profit from every game they sell is deposited directly
Nikolay [14]

Answer:

B. 23 games.

Step-by-step explanation:

Current balance: $469

Goal balance: $825.50

Profit per game: $15.50

  1. 825.50 - 469 = 356.50

They only need $365.50 in order to reach the goal.

  1. 356.50 ÷ 15.50 = 23

They need to sell 23 games, each selling for $15.50, in order to reach their goal balance, of $825.50.

  • Therefore, the answer is B.
3 0
3 years ago
Other questions:
  • tia brought a sweater that was discounted for 20% of the original price. She saved $4.60 with the discount. what was the origina
    7·1 answer
  • Sandi had the following problem on her math test:6•4+2÷2-7
    9·1 answer
  • Number 5 question canvas
    13·1 answer
  • it takes the earth 24 hours to complete a full rotation. It take the sun approximately 25 days, nine hours, and seven minutes to
    9·1 answer
  • For a school play, the teacher asked the class to set up chairs in 20 rows with 25 chairs in each row. After setting up all the
    10·2 answers
  • Find the distance between (-3,5) and (6,4). Round your answer to the nearest hundredth.
    15·1 answer
  • In Everglades National Park in Florida, there are 200 species of birds that migrate. This accounts for 2/7 of all the species of
    11·1 answer
  • Let r(t) be the rate in gallons per hour at which water enters a tank. what are the units of r'(t)?
    8·1 answer
  • A small cruise ship has 220 passengers. At the Port of San Juan, 2 groups of 12 passengers go ashore to shop and 5 groups of 6 p
    7·2 answers
  • The point-slope form of the equation of a line that passes through points (8, 4) and (0, 2) is y − 4 = (x − 8). What
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!