we can call guest x
1/3x+5/12x+69=total guests at the wedding
if we multiply 1/3 by 4 we get 4/12. we can add 4/12 to 5/12 to get 9/12 which can be reduces to 3/4. that means the vegetarian guests make up 1/4 of the wedding. if 69 is 1/4, then we have all the information we need to solve this
25% 69 ----- ------ 100% ?
we are solving for the question mark. this is just a diagram. we know 25% of the 100% of the guest and we know that we have 69 of the however many guest. multiply 100 by 69
100x69=6900
now divide 6900 by 25
6900/25=276 guests at the wedding
