Alain throws a stone off a bridge into a river below.
1 answer:
You might be interested in
Answer:
The population will be 896 turtles 6 years later ⇒ B
Step-by-step explanation:
The exponential increasing formula is y = a, where
- y is the new value
- a is the initial value
- r is the rate of increase in decimal
- x is the time in years
∵ There are 300 turtles
∴ a = 300
∵ The population of the turtles exponentially increases 20% each year
∴ r = 20%
→ Divide it by 100 to change it to decimal
∵ 20% = 20 ÷ 100 = 0.2
∴ r = 0.2
∵ The time is 6 years
∴ x = 6
→ Substitute these values in the exponential formula above
∵ y = 300
∴ y = 300
∴ y = 895.7952
→ Round it to the nearest whole number
∴ y = 896
∴ The population will be 896 turtles 6 years later
Answer:
Step-by-step explanation:
The given expresion is:
We want to find the first step in simplifying the above expression based on order of operations.
We use PEDMAS, so we deal with parenthesis first.
Within the parenthesis, we still need to multiply first to get:
The value of x is 4
Step-by-step explanation:
The formula for simple interest is:
Here
P is principal amount
r is interest rate
and t is the time in years
We know
Interest = $840
Rate = r = 5%
P = $4200
Putting the values in the formula
Hence,
The value of x is 4
Keywords: Simple interest
Learn more about simple interest at:
#LearnwithBrainly