Answer:X=31
Step-by-step explanation: Have a brilliant day! - Lily ^_^
Girs: boys = 7:5
42 : boys = 7: 5
42 : b = 7 : 5
42 / b = 7 / 5 Cross multiply
b*7 = 42 * 5
7b = 42* 5
b = 42*5/7 = 6*5 = 30
boys that participated are 30.
Answer: 1/5 or 20%
Step by Step Explanation:
Since there is 10 possible out comes, and you favor 2 of them, roling the die once will give you a 10/2 or 1/5 chance of getting 3 or 5.
Formula: Number of outcomes divided by Favorable Outcomes
Answer:
1 3/8
Step-by-step explanation:
3/5+1/4+3/8 = 1.375
1.375= 1 3/8