Answer:
Mean: 11.5 Median: 6
Step-by-step explanation:
For the mean find the average by adding all of the numbers up and dividing by the number of numbers in the set.
For the median arrange the numbers in order of least to greatest then find the middle number if there is two add them together and divide by two.
Answer:
B) 20%
Step-by-step explanation:
Exponential equation:
An exponential equation is given by:
In which A(0) is the initial amount and r is the growth rate, as a decimal.
In this question:
Growth rate:
We want to find r, so:
The growth rate is of 0.2 = 2%, and the correct answer is given by option B.
On the way to school, if the ratio of walkers to bus riders is 2:7, then the number of bus riders is 3.5 times<span> the number of walkers.</span>
Explanation:
7 is 3.5 times larger than 2.
2×3.5 = 7
Answer: 3.5
Answer:
I'm sure you know what factorising is right so we'll group these numbers in groups of 2 so that the first bracket contains x squared plus 2x and the second one contains a x + z a then in the first bracket the common number there is xx will be outside the bracket so that we have x (x+2) then a(x+z)