The answer is C. If the original equation is 10+20 for one swing, you multiply that by 3 to get the cost of three swings
Answer: y = 64
Step-by-step explanation:
y <> x² ----------------------- 1
y = kx² ----------------------- 2
36 = 3²k
36 = 9k
K = 36/9
= 4.
To find y when x = 4, we substitute for x in equation 2
y = kx²
y = 4²k
y = 16 x 4
y = 64
2. $350
3a: 15 is half of 30, so knowing that means the answer is 50%
3b. 3 is 1/4 of 12 because 3x4 is 12, meaning that 3 is 25% of 12.
3c. 6 over 10 as a decimal is 0.6. Which as a percent is 60%
4. Noah's method does work because 20% x 5 is equal to 100% of a number.
Answer:
20 planes.
Step-by-step explanation:
12+p=32
- 12 - 12
p = 20