Purple = p
Blue = b
Step 1: Write as an algebraic equation.
p = 4b - 6
p + b = 49
Step 2: Rearrange p + b = 49 to make p the subject.
p + b = 49
p = 49 - b
Step 3: Write p = 4b - 6 and p = 49 - b into one equation.
p = 4b - 6 = 49 - b
Step 4: Move all b values onto one side.
p = 5b = 55
Step 5: Find the value of one blue marble.
5b = 55
b = 11
Step 6: If there are 11 blue marbles and there are 49 marbles in total, then find the number of purple marbles.
p = 49 - b
p = 49 - 11
p = 38
ANSWER:
There are 38 blue marbles.
It would be 1,300. When rounding, you'd need to look at the number to the right of the place you're rounding to. In this case, you're rounding to the hundreds place (the 2), so you look at the number to the right (7). To know if you round up or down use this:
Round down= 0-4
Round up= 5-9
The answer to your question is 41
Answer:
The best measure of center for this dot plot is the median.
Choice A
Step-by-step explanation:
measures of center or location of a data set include;
the mean
the mode
the median
If a data set is symmetric or approximately normal then the best measure of center is the mean. On the other hand, for an asymmetric data with outliers the best measure of center is the median since it is robust to outliers.
