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
nevsk [136]
3 years ago
9

Urgent please

Mathematics
2 answers:
svetoff [14.1K]3 years ago
5 0

Ratio of boys to girls in class

3 : 5 40

Boys + giris 3 + 5 = 8 Total 40

Unit of ratio - 40/8 = 5

Boys = 5 * 3 = 15 Girls = 5 * 5 = 25 Total 40

Add 3 new girls Girls 25 + 3 = 28

Minus 1 boy Boys 15 - 1 = 14

New ratio boys to girls is 14 : 28

Simplify 14/28 = 1/2

New simplified ratio of boys to girls is 1 : 2


Natasha2012 [34]3 years ago
4 0

Boys : Girls = 3 : 5


3 + 5 = 8 parts


<u>Find 1 part:</u>

8 parts = 40 students

1 part = 40 ÷ 8 = 5 students


<u>Find number of boys and girls:</u>

3 parts = 3 x 5 = 15 girls

5 parts = 5 x 5 = 25 boys


Original Number of students = 15 : 25


<u>Find new ratio:</u>

New Ratio = 15 + 3 : 25 - 1 = 18 : 24 = 3 : 4


Answer: 3 : 4

You might be interested in
Below are the graphs of the functions y=2x and y3x What is the same about both lines?​
Yanka [14]
C they rise upward toward the right
5 0
2 years ago
Which is the best estimate of -14 1/9 (-2 9/10)?<br>-42<br>-28<br>28<br>42​
andrew-mc [135]
-42 is the best estimate
5 0
2 years ago
Read 2 more answers
Billy charges $15 to mow a yard. He needs at least $200 for the new bicycle that he wants. Write and solve an inequality to find
Marta_Voda [28]
He has to mow 14 yard to get at least 200 but he will have 10 extra dollars.
3 0
3 years ago
Read 2 more answers
Jalen made $533.75 while working at his job. He makes $15.25 an hour, how many hours did he work to make that amount of money?
mixer [17]

Answer:

35 hours

Step-by-step explanation:

Typically, people get their paycheck after 2 weeks.

Let say he worked 8 hours a day, a typical amount of hours for the average human who has a occupation.

Multiply the amount of hours by the amount payed every hour.

So 15.25 x 8 is 122

( so in 8 hours jalen made $122)

Add 8 hours, which would now be 16 hours worked.

16 x 15.25 = 244

(so in 16 hours jalen made $244)

Add another 8 hours of work time which would now be 24 hours (1 full day)

24x5.25=366

Add 10 hours on now which would be 34 hours worked (2 days = 48 hours meaning she worked 1 day and 10 hours )

34x15.25=518.50

(getting closer to the amount she earned)

So if we add another hour

which would be 35 hours worked (1 day 11 hours)

35 x 15.25 = 533.75

Therefore, Jalen worked 35 hours.

5 0
2 years ago
The length of a rectangular computer chip is 22 x 10 cm and the width is 7 x 104 cm. Explain how to
mash [69]

Answer:

area = 160160 inches²

area = 1.6016 × 10⁵ inches²

Step-by-step explanation:

The length of the rectangular computer chip is 22 × 10 cm and the width is 7 × 104 cm .  

The area of the rectangular computer chip is the product of the length and the width.

area = length × width

area = (22 × 10) × (7 × 104)  

area = 220 × 728

area = 160160  inches²

In scientific notation

area = 1.6016 × 10⁵ inches²

160160 is written as 1.6016 × 10⁵ because 1.60160 × 100000 = 1.6016 × 10⁵

7 0
3 years ago
Other questions:
  • Help!
    5·1 answer
  • your bank account balance was 235.24 after two checks were cashed each for the same amount your balance is now -45.58 what was t
    12·2 answers
  • Solve the Equation. What is b?
    15·1 answer
  • Which of the following are solutions to | x+31= 4x - 7? Check all that app
    13·1 answer
  • what is f(x) = 2x2 28x – 5 written in vertex form? f(x) = 2(x 7)2 – 19 f(x) = 2(x 7)2 – 103 f(x) = 2(x 14)2 – 14 f(x) = 2(x 14)2
    10·2 answers
  • I LOVE SINJIN VAN CLEEF&lt;33
    9·2 answers
  • Find the unknown sides and angles of this triangle using the Law of Cosines. Round to the nearest hundredth.
    6·1 answer
  • Simplify the expression by combining like terms<br> 3x+4y+y-2x+11+8x
    8·1 answer
  • Find the value of x in this figure !!NO LINKS!! WILL GIVE BRAINLIEST!
    15·2 answers
  • There are 5 yachts for sale at the harbor. Each yacht costs $65,296. How much would it cost to buy all 5 yachts?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!