Step-by-step explanation:
selling price of 1 kg oranges = rupees 80
so, selling price of 50 kg oranges :-
=》80 × 50
=》4000
now, profit = 800
so, Cost price (C.P) = selling price - profit
=》C.P = 4000 - 800
=》C.P = 3200
SO, purchasing rate per kg was
=》3200 ÷ 50 = 64
hence, purchasing rate = 64 rupees per kg
profit % =

=》

=》

=》

hence, profit % = 25%
Answer:
4.75% probability that the battery will last more than 9 hours before running out of power
Step-by-step explanation:
Problems of normally distributed samples are solved using the z-score formula.
In a set with mean
and standard deviation
, the zscore of a measure X is given by:

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this problem, we have that:

What is the probability that the battery will last more than 9 hours before running out of power g
This is 1 subtracted by the pvalue of Z when X = 9. So



has a pvalue of 0.9525
1 - 0.9525 = 0.0475
4.75% probability that the battery will last more than 9 hours before running out of power
Answer:
Step-by-step explanation:
<u>Given</u>
<u>We see J is between H and K, so </u>
- KH = HJ + JK
- 2x + 5 + 3x - 7 = 18
- 5x - 2 = 18
- 5x = 20
- x = 4
Answer:
Step-by-step explanation:
<u>The coordinates of A and B are:</u>
<u>The distance AB is:</u>
<u>The rectangle wit the area of 30 units² should have the other dimension:</u>
<u>Since D and C are below of the A and B, their coordinates will be same on x-axis but different on y-axis:</u>
- D = (-2, 3 - 6 = - 3) = (- 2, - 3)
- C = (3, 3 - 6 = - 3) = (3, - 3)
Correct choice is B