Answer:
5% increase
Step-by-step explanation:
First, find how much it increased:
6300 - 6000
= 300
Then, to find the percent increase, divide 300 by 6000
300/6000
= 0.05
So, there was a 5% increase in the population
Answer:1/870
Step-by-step explanation:
The total number of student in Mr parietti class is 30 (18girls and 12boys). If a student is first chosen at random from the class. The probability of choosing 1 student out of 30 will be 1/30.
He then chose another student without replacing the first, the probability of choosing that second lady will be 1/29 (since the remaining students are 29).
the probability that both students chosen are girls will be 1/30×1/29 = 1/870
Answer: the number of miles that Bryan hiked is 160
Step-by-step explanation:
Total distance that Bryan hiked last summer was 8.48x 10^5 feet.
There are approximately 5.3 x 10^3 feet in a mile. Converting 8.48 × 10^5 feet to miles, it becomes
8.48 × 10^5/5.3 x 10^3
Applying the rules of indices which is expressed as
a^x ÷ a^y = a^(x - y)
It becomes
= 1.6 × 10^ (5 - 3)
= 1.6 × 10^2
= 160 miles
Given that a tree of height
meters has
approximately
branches, where
. Each branch has
approximately
leaves where
.
(b) Consider a tree of height meters. Use the model
above to find an expression for the approximate number of leaves on
the tree. Give your answer in terms of y.
The approximate number of branches on the tree of height
is given by
The approximate number of leaves on each branch is
,
Given that there are
branches on the three.
Therefore, the approximate number of leaves on the tree is given by