Question

Of the 78 teenagers at a youth camp, 63% have birthdays in the spring. Estimate about how many teenagers have birthdays in the spring?

Answer 1

The exact answer is 49.14, but you should round it to either 49 or 50. I would do 49 because it is closer. To find percentages;
The percent, in this case 63%, is just 63 over 100 (63/100 as a fraction.) this is also 0.63. You take the number and multiply it by the percentage. So:
78 x 0.63 = 49.14, rounded to 49.
Hope this helps :)