All categories

3 years ago

if there are 1050 students in a school and the ratio of boys to girls is 9:5 what is the number if boys in the school?

Mathematics

1 answer:

katrin2010 [14]3 years ago

6 0

Answer:

675

Step-by-step explanation:

Let the ratio be 'R'

Total number of students = 1050

Then,

9R + 5R = 1050

R = 1050

=> R = 75

Hence, the number of boys = 9R = 9 x 75 = 675

You might be interested in

Mr. Jones's prescription calls for 1.04 tablets per day. Based on this information, how many tablets should Mr. Jones take per d

katrin2010 [14]

Answer:

c) 1

Step-by-step explanation:

4 0

3 years ago

The x and y intercept of 3x + 4y = -12

muminat

× equals negative 4 i think and y equals -3

5 0

3 years ago

bryan has some 3 cent stamps and some 4 cent stamps. what is the least number of stamps he can combine so the value of the stamp

SashulF [63]

Answer:

The least number of stamps required is $9$

Step-by-step explanation:

Let the number of $3$ cent stamps be $x$ and $4$ cent stamps be $y$

We have

$3x+4y=33$

The minimum number is obtained when more $4$ cent stamps are used

Here $y$ cannot be greater than $8$ since $\frac{33}{4}$

Substitute $y=8$

$3x+4\times 8=33\\\\3x=1\\\\x=\frac{1}{3}$

Not possible since $x$ is not a fraction

Substitute $y=7$

$3x+4\times 7=33\\\\3x=5\\\\x=\frac{5}{3}$

Not possible since $x$ is not a fraction

Substitute $y=6$

$3x+4\times 6=33\\\\3x=9\\\\x=\frac{9}{3}\\\\=3$

Possible

Hence minimum number of stamps is

$=x+y\\\\=3+6\\\\=9$

5 0

2 years ago

A total of 243 tickets were sold for the school play. They were either adult tickets or student tickets. The number of student t

alina1380 [7]

Answer:

81 adult tickets

Step-by-step explanation:

Step 1:

Set up a system of equations

Since the adult tickets and student tickets add to 243, we can do

$a+s=243$

and the student tickets sold were 2x the adult tickets, we can do

$s=2a$

We can replace s in the first equation adding to 243 with 2a

$a+s(2a)=243\\3a=243\\$

Step 2:

Solve for a. We can divide both sides by 3.

$a=81$

Therefore, there were 81 adult tickets sold.

Step 3:

We can check our work! Since we learned earlier the student tickets are 2x adult tickets, we can multiply 81 by 2 and add that to 81 to see if it equals 243!

$s=2a\\s=2(81)\\s=162$

And...

$162+81=243$

So, 81 must be the answer!

8 0

2 years ago

Read 2 more answers

What are the domain and range of the exponential function below?

LekaFEV [45]

I believe the correct answer from the choices listed above is the second option. The <span>Domain are All real numbers and the Range are All real numbers greater than 3. Hope this answers the question. Have a nice day.</span>

4 0

3 years ago

Read 2 more answers

if there are 1050 students in a school and the ratio of boys to girls is 9:5 what is the number if boys in the school?​

if there are 1050 students in a school and the ratio of boys to girls is 9:5 what is the number if boys in the school?