Given:
Total number of students = 1400
The ratio of boys to girls is 3 to 4 for the school.
To find:
The number of boys and girls.
Solution:
We have, Boy : Girls = 3:4.
Let number of boys be 3x and number of girls be 4x.
Total number of students = 1400
Divide both sides by 7.
Now,
Number of boys 
Number of girls 
Therefore, the number of boys is 600 and number of girls is 800 in the Berkmar Middle school.
we'll proceed along the same lines as the previous one.
the cost of the boots is 90.10 and that includes 6.25% sales tax, so if "x" is the 100%, then 90.10 is really the 106.25%, because is including the extra 6.25%.
so if that's the cost of each boot, without tax, then the markup will be 88.8 - 50.88 = 37.92.
if the 100% is 88.8, how much is 37.92 off of it in percentage?
The answer is 30. you can find the unit rate but the calculator was invented a long time ago so i used that ;)
Answer:
B) Likely
Step-by-step explanation:
Unlikely = < 50%
Likely = > 50%
Certain = 100%
Equally likely = 50%
To calculate the percentage increase:
First: Find out the difference (increase) between the two numbers you are comparing.
It is computed by: Increase = New Number - Original Number
Second: Divide the increase by the original number and multiply the answer by 100.
It is computed by: % increase = Increase ÷ Original Number × 100.
So in the problem:
First step:Increase = 1000 – 100
Increase = 900
Second:
% increase = 900 / 100 x 100%
increase = 900% increase
