Answer:
Let the retail cost be x and the wholesale cost be y
Step-by-step explanation:
x = y + 0.50y
x = 1.50y
Therefore the retail cost is 1.50 times the wholesale cost.
Answer:
The bottom right histogram is the correct one.
Step-by-step explanation:
Carrots weight 40-49 kg = 2
... of weight 50-59 = 6
... of weight 60-69 = 4
.. of weight 70-79 = 1
First step: partition the number you want to square root into a block of 2 digits, starting from the last digit (first diagram)
Second step: As our number is a five-digits, we ends up with 2 28 01. Pick a number that could be squared to get the first partition, 2. This number is 1, since 1×1=1
Third step: Write 1 on the top and on the side, as shown in the second graph
Fourth step: Double the number on the side, which is 1+1=2 and use this number as the first digit for the next multiplier. Meanwhile, subtract 1 from 2 inside the root sign to get 1, then pull the other two digits, 28
Fifth step: We need a value in the boxes that when we multiply together will give a number less than 128. We choose 5 as 25×5=125
Sixth step: Subtract 125 from 128 to give 3, and as the same concept with long division, bring down the 0 and the 1. So we have 301
Seventh step: Add 5 to the multiplier on the left, so 20+5=30, which we will use on the side as the hundred and ten digits.
Final step: Find a number to fit in the boxes. We choose 1 since 301×1=301
And hence the square root of 228801 is 151
Answer:
a.) the probability that both the ball drawn are black =
b.) Sum of all the probabilities = 
Step-by-step explanation:
a) two balls are drawn at random .
total number of balls = 10
number of black balls = 5
number of white balls = 5.
the number of ways two balls can be drawn = 
the number of ways two black balls can be drawn = 
the probability that both the ball drawn are black =
b) probability that First draw of two black balls = 
probability that first draw is of two white balls is and second draw is of
two black balls = 
Probability that first two draws are of white balls and the third draw is of
two black balls = 
This is a geometric sequence and the final probability will be the sum of
all such probabilities, where we can take the the sequence to be an infinite series and the first term is
and the common ratio is
which is less than 1.
Sum of all the probabilities = 