For question 3, you needn't worry about the number of total students asked. The question is really just asking you what's 45% as a fraction, which is 9/20. This is because 45% = 45/100, divided by 5 = 9/20.
For question 6, just substitute in the values. So you do 4(7 × 4 - 3 × -7), which gives you 4(28 - -21). Two minuses make a plus, so it's just asking you to do 4 × 49 (because 28 + 21 = 49). The answer is 196.
12/14
18/21
if you multiply the numerator and denominator of a fraction by same number, you can get an equivalent fraction
good luck
Answer:
Step-by-step explanation:
if you divide an arc's degree measure by 360°
you find the fraction of the circle's circumference that the arc makes up Then if you multiply the length all the way
48-10=x x=38
38x2= 76
so basically his weight is 48, which is ten more than his fathers weight, so you subtract ten from 48, giving you 38. 38 is only half the father's weight, so you double it and get 76.
