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
puteri [66]
3 years ago
10

There are 600 students in a school. The ratio of boys to girls is 3:5. How many boys and how many girls are there?

Mathematics
1 answer:
vitfil [10]3 years ago
8 0
Add both amounts together but both multiplied by an unknown value, x.
3x+5x=600
8x=600
8x/8=600/8
x=75
3(75)=225
225 boys
5(75)=375
375 girls

225 boys and 375 girls
You might be interested in
Please please help!!
shepuryov [24]

Answer:

\large\boxed{x=0\ and\ x=\pi}

Step-by-step explanation:

\tan^2x\sec^2x+2\sec^2x-\tan^2x=2\\\\\text{Use}\ \tan x=\dfrac{\sin x}{\cos x},\ \sec x=\dfrac{1}{\cos x}:\\\\\left(\dfrac{\sin x}{\cos x}\right)^2\left(\dfrac{1}{\cos x}\right)^2+2\left(\dfrac{1}{\cos x}\right)^2-\left(\dfrac{\sin x}{\cos x}\right)^2=2\\\\\left(\dfrac{\sin^2x}{\cos^2x}\right)\left(\dfrac{1}{\cos^2x}\right)+\dfrac{2}{\cos^2x}-\dfrac{\sin^2x}{\cos^2x}=2

\dfrac{\sin^2x}{(\cos^2x)^2}+\dfrac{2-\sin^2x}{\cos^2x}=2\\\\\text{Use}\ \sin^2x+\cos^2x=1\to\sin^2x=1-\cos^2x\\\\\dfrac{1-\cos^2x}{(\cos^2x)^2}+\dfrac{2-(1-\cos^2x)}{\cos^2x}=2\\\\\dfrac{1-\cos^2x}{(\cos^2x)^2}+\dfrac{2-1+\cos^2x}{\cos^2x}=2\\\\\dfrac{1-\cos^2x}{(\cos^2x)^2}+\dfrac{1+\cos^2x}{\cos^2x}=2

\dfrac{1-\cos^2x}{(\cos^2x)^2}+\dfrac{(1+\cos^2x)(\cos^2x)}{(\cos^2x)^2}=2\qquad\text{Use the distributive property}\\\\\dfrac{1-\cos^2x+\cos^2x+\cos^4x}{\cos^4x}=2\\\\\dfrac{1+\cos^4x}{\cos^4x}=2\qquad\text{multiply both sides by}\ \cos^4x\neq0\\\\1+\cos^4x=2\cos^4x\qquad\text{subtract}\ \cos^4x\ \text{from both sides}\\\\1=\cos^4x\iff \cos x=\pm\sqrt1\to\cos x=\pm1\\\\ x=k\pi\ for\ k\in\mathbb{Z}\\\\\text{On the interval}\ 0\leq x

4 0
2 years ago
How do you do this question
ella [17]

Answer:


Step-by-step explanation:


5 0
3 years ago
On Monday, there was no snow on the ground in Buffalo, New York. On Tuesday, three inches of snow fell.On Wensday a half an inch
mario62 [17]
Hi there!

Monday- 0 in.

Tuesday- 3 in.

Wedsnday- 2 1/2 in.

Thursday- 5 in.

Friday- 3 1/2 in.

Therefore, the answer is - 3 1/2 inches of snow was left on Friday.

Hope this helps you!

~DL
7 0
3 years ago
The radius of a circle is 6 yards. What is the circle's circumference? Use 3.14 for ​.
Orlov [11]

Answer:

18.84

Step-by-step explanation:

sorry if i get the wrong answer i literlly learn this but i complety forget it

5 0
2 years ago
Read 2 more answers
A quadrilateral whose consecutive sides measure 15, 18,15, and 18
anastassius [24]

Answer:

its a rectangle

Step-by-step explanation:

how to explain this

6 0
3 years ago
Other questions:
  • Evaluate c−2c-2 c−2 when c=7c=7 c=7 .
    14·2 answers
  • 12x² + 2x² – 30x – 5
    13·1 answer
  • A restaurant reports a net income of -1,242 over a three month period. What is the average income per month for that period, (Pl
    10·1 answer
  • Will is selling T-shirts for $15 and sweatshirts for $20 at the basketball game. Wills club team needs to raise over $200 for th
    6·1 answer
  • (3.6 x 10⁷) / (7.2 x 10⁷)
    10·1 answer
  • Write the following in standard form: 603-8:2+ + 5.0 + 12.2^9.
    14·1 answer
  • Five years ago, Benjamin invested in Parchar Special Effects. He purchased four par value $1,000 bonds from Parchar Special Effe
    13·1 answer
  • Select the interval where f is negative.
    10·2 answers
  • HELP PLSSS THIS IS HARD SOMEONE
    14·2 answers
  • If we wanted to make 100 brownies, how many cups of sugar do we need
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!