Mean = $52
median = $53
no mode
range = 63 - 40 = $23
Step-by-step explanation:
x = the total money she had first.
x - x×1/4 - (x - x×1/4)×1/2 = 15
you see, first we needed to deduct 1/4 of x from x. that left us with (x - x×1/4). and from that we need to deduct 1/2.
now, we can simplify :
(x - x×1/4) = (x×4/4 - x×1/4) = x×3/4
x×3/4 - x×3/4 × 1/2 = 15
x×3/4 - x×3/8 = 15
we multiply both sides by 8 (4 is a factor of 8, so this handled both fractions perfectly) :
x×3×2 - x×3 = 120
6x - 3x = 120
3x = 120
x = $40
she had $40 at the beginning.
Answer:
the answer is C.
Step-by-step explanation:
It is C because you are already dividing the numbers so you are going to multiply them and your answer for the division should be the same answer on the multiplication.
The dice only has 6 sides so if you need to roll a 2 or less that only leaves the number one. So it would be 2/6
Round 34 to 30 and round 89 to 90. Multiply 30 and 90 which equals to 2700.
