percent change = ((new value) - (reference value))/(reference value) × 100%
... = (487 -65)/65 × 100%
... = 422/65 × 100%
... = 6.492 × 100%
... ≈ 649%
The gestation period of rhinos is 649% longer than the gestation period of dogs.
Answer:
100
Step-by-step explanation:
In this problem 10 represents 9% of a number. So, to find 90% you must multiply 10 by 10. You do this because 9% times 10 equals 90%; therefore, 100 must be 90%.
This can also be proven through cross multiplication. To set up a proportion put the percent over the number like,
. Then cross multiply to get the equation,
. Finally, divide both sides to get x=100.
Answer: An ostrich can walk with a speed of 2 miles per hour.
Step-by-step explanation:
Speed of roadrunner bird=14 miles per hour
Let x be the speed of ostrich egg.
Given that : A the greater roadrunner bird can run 7 times faster than an ostrich can walk.
⇒ Speed of roadrunner bird=7x
⇒7x= 14 miles per hour.

Therefore, speed of ostrich egg=2 miles per hour.
Answer:
a ball resting on the edge of a cliff
Answer:
b
Step-by-step explanation: