Answer:
h = 6 cm
Step-by-step explanation:
Volume of cylinder = 54 π cm³
πr²h = 54π
π * 3 * 3 * h = 54π

Answer: 306.9
Step-by-step explanation: 3.1 x 11 = 34.1 x 9 = 306.9
Answer:
Step-by-step explanation:
Let x be pineapple juice each serving
T be the final juice available
(1) T = 8x+5
(2) T+11 = 12x
Solving simultaneously,
(8x+5)+11 = 12x
8x+16 = 12x
4x = 16
x = 4
48 girls are there. Given that there is a ratio of boys to girls of 7:8. Then divide 42 boys by 7 boys which equals 6. After, multiply 6 by 8 girls equals 48 girls.