It would be B 17 because 306 divided by 18 would be 17
<span>9r - 2 = 16
9r = 16 + 2
9r = 18
r = 2
Answer : B) 2</span>
Answer:
A. Ratio boys to girls ---> 19 : 26
B. Ratio of 5th grade to 6th grade ---> 21 : 24
C. Ratio of girls to total number of chorus students ---> 26 : 45
Step-by-step explanation:
A. the amount of boys is 9 + 10, the amount of girls is 12 + 26
B. the amount of 5th graders is 12 + 9, the amount of 6th graders is 14 + 10
C. the number of girls is 12 + 14, and the number of chorus students is 12+9+14+10
Answer:
Surface area = 39 yards²
Step-by-step explanation:
∵ the surface area of the pyramid = 1/2 pl + base area
Where p = perimeter of the base , l = slant height
∵ Area of the base = 3 × 3 = 9 yards²
∵ Perimeter of the base = 4 × 3 = 12 yards
∵ Slant height = 5 yards
∴ The surface area = 1/2 × 12 × 5 + 9 = 39 yards²
