Answer:
56 gray chairs
24 blue chairs
Step-by-step explanation:
ratio of gray to blue chairs in each row
Gray : blue = 7 : 3
Gray chairs = 7
Blue chairs = 3
Total ratio = 7 + 3
= 10
how many gray chairs and blue chairs will julio use if he sets up a total of 80 chairs
Number of gray chairs = 7/10 × 80
= 0.07 × 80
= 56 gray chairs
Number of blue chairs = 3/10 × 80
= 0.03 × 80
= 24 blue chairs
56 gray chairs
24 blue chairs
