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
lorasvet [3.4K]
3 years ago
11

The numbers of boys and girls in a class was in the ratio 2:5. After 5 girls were transferred to another class, half of the rema

ining students were boys. How many more girls than boys were there in the class at first?
​
Mathematics
2 answers:
I am Lyosha [343]3 years ago
8 0

Answer:

15

Step by step explanation

Artist 52 [7]3 years ago
6 0

Answer:

15

Step-by-step explanation:

If there are 10 boys and 25 girls, which is a ratio of 2:5, then when 5 girls are transferred, there are 10 boys and 20 girls, meaning half of them are boys, so the class started out with 15 more girls than boys.

You might be interested in
Pleas hlp am going to fail here are the options
Mrac [35]
I think it is b hope it helps
3 0
2 years ago
Read 2 more answers
The combined average weight of an okapi and a llama is 450450 kilograms. The average weight of 33 llamas is 190190 kilograms mor
Nataliya [291]

Answer:

Okapi 290 kg

Llama 160 kg


Step-by-step explanation:

Let weight of each llama be  l

Let weight of each okapi be  o


<em>Given, combined weight of 1 okapi and 1 llama is 450, we can write:</em>

<em>l+o=450</em>

<em>Also, average weight of 3 llama is 190 more than the average weight of 1 okapi, thus we can write:</em>

<em>3l-190=o</em>


Now, substituting 2nd equation into 1st equation, we can solve for weight of 1 llama:

l+o=450\\l+(3l-190)=450\\l+3l-190=450\\4l=450+190\\4l=640\\l=\frac{640}{4}=160


Each llama weights 160 kg, now using this and plugging into 2nd equation, we get weight of 1 okapi to be:

o=3l-190\\o=3(160)-190\\o=290

Each okapi weigh 290 kg

5 0
3 years ago
Can someone help me with this because I am struggling and if you don't mind show me the steps
Korvikt [17]
Attach and send a picture
3 0
3 years ago
Find the area of a square where each side measures 9.3 ft.
PSYCHO15rus [73]
Your answer for this is 86.49
7 0
3 years ago
To thase who missed the other ones 4+5-6/7*8-7
hoa [83]

Answer:

-6.67 im pretty sure

Step-by-step explanation:

4+5=9

9-6=3

3/7=0.43

0.43-7=-6.67

the calculator says sum else but like who cares right? lol

4 0
3 years ago
Read 2 more answers
Other questions:
  • The figure below shows a straight line AB intersected by another straight line t:
    13·1 answer
  • What is the slope of 2y=5x+7
    5·1 answer
  • The total height of three trees is 11 m. Tree A is 1 m shorter than
    12·1 answer
  • The time it takes to drive to Joliet is 6 hours more than half the time it takes to drive to Davenport. It takes 8 hours to driv
    7·2 answers
  • A common approach to keeping a record of each customer's account receivable is to use a subsidiary accounts receivable ledger.a.
    10·1 answer
  • (07.02 MC)
    15·1 answer
  • 2<br> Solve the equation 3x +125 = 49
    6·1 answer
  • Which statement compares the two numbers correctly?
    8·1 answer
  • Use the identity (x+y)(x2−xy+y2)=x3+y3 to find the sum of two numbers if the product of the numbers is 28, the sum of the square
    5·2 answers
  • the original price of a jacket is $68. The sale price is 30% off the original price. what is the amount off the original price?​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!