Answer:
0.4 , 0.1
Step-by-step explanation:
Let number of boys be = b , number of girls = b + 4 . As total students = 20 b + b + 4 = 20 → 2b + 4 = 20 → 2b = 20 - 4 = 16 → b = 16 / 2 = 8 (boys) , so girls = 12
Prob (a random first child is a boy) = boys / total students = 8 c 1 / 20 c1, or = 8 / 20 = 0.4
Prob ( a 'Tina' out of two Tina is the last) = 2 c 1 / 20 c 1 , or = 2 / 20 = 0.1
The March sales of Jazz records is an illustration of proportions, and the number of jazz records sold all year is 7x
<h3>How to determine the total number of sales?</h3>
The sales in March is given as:
Proportion = 1/7
Let the actual number of sales in the month of March be x, and the total sales in the year be y.
So, we have:
1/7 * y = x
Make y the subject
y =7x
Hence, the number of jazz records sold all year is 7x
Read more about proportions at
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Answer:
41
Step-by-step explanation:
Answer:
Approximately 45,455 total employees.
Step-by-step explanation:
So the company has 13,500 employees in one country. And this represents 29.7% of the company's employees.
In other words:
The left represents the number of employees in one country <em>over</em> the total number.
And the right is the decimal form of 29.7%. Simply move the decimal two places to the left and remove the percent symbol.
So, to solve for the total, multiply both sides by it first. The left side cancels:
Now, divide both sides by 0.297. The right side cancels:
Use a calculator.
So, there is approximately 45,455 total employees.
