Answer:
a = 
Step-by-step explanation:
4a -16 = a - 15
both left and right -a
then
4a - 16 -a = a - 15 -a
then
4a -a -16 = a -a -15
then
3a -16 = -15
both left and right + 16
then
3a -16 + 16 = -15 + 16
then
3a = 1
both left and right ÷3
then
3a ÷ 3 =1 ÷ 3
then
a =
1) ANSWER: 1/2, 50%
2) 9+3+4 = 16 4/16 = (1/4, 25%) ANSWER: 1/4, 25%
{Put 4 over 16, because 16 is the total, 4 is the amount of white marbles}
3) ANSWER: 2/3, roughly 66.6%
4) 5+3+2+5 = 15 , 3+2 = 5, 5/15 = 1/3, roughly 33.3%
{Add the total amount of pennies, dimes, nickels, and quarters, and find how many Dimes and Nickels there are combined, put that over the total, simplify}
ANSWER: 1/3, 33.3%
5) , if it’s asking a number 1 card it would be 4/52 = 1/13 = roughly 8% , if it’s asking just one card from the whole deck then 1/52, roughly 2% ANSWER: 1/13, 8% OR 1/52, 2%
6) 6+7+9+15 = 37, 15/37 {Yellow over total amount of m&m’s} Roughly 41%
ANSWER: 15/37, 41%
7) 2+5+8+3= 18 - 8 = 10, 10/18, roughly 55.5%
{It says that’s NOT green, so add up all them, and subtract the green ones, take that number over the total, and that’s your answer} ANSWER: 5/9, 55.5%
8) 11 letters in the world PROBABILITY, 4 vowels, 4/11, roughly 36% ANSWER: 4/11, 36%
9) 4& 6 are two numbers, that’s 6 - 2, 2/3, ANSWER 2/3, 66.6%
Hope this helps.
