3(n - 5) = 24
Distributive property
3*n = 3n
3*5 = 15
3n - 15 = 24
+ 15 +15
3n = 39
3n/3 = 39/3
x = 39/3
x = 13
Answer: x = 13
Answer:
Step-by-step explanation:
- 7m ÷ 2 = 3.5m
- Part A: New square is 3.5-meter by 3.5-meter
- The original square's perimeter is 7x4=28-meter.
- The new square's perimeter is 3.5x4=12-meter
- Part B: The ratio is 12:28 or 3:7
- The original square's area is 7²=49 meter²
- The new square's area is 3.5²=12.25 meter²
- Part C: The ratio is 49:12.25
If Rachel's hair grows 3.5 inches in 6 months and there are 24 months in 2 years we can find the solution by multiplying 3.5 by 4. The answer is 14 inches
h(t) = -16t2 + 64
Time to reach ground:
h(t) = 0
-16t2 + 64 = 0
Solve for t, keeping only the positive solution.
Time to fall 36 ft:
Since it is dropped from 64 ft, its height after falling 36 feet is 64-36=28 ft.
28 = -16t2 + 64
-16t2 + 36 = 0
