Jenny is incorrect in her calculation.
For every time that Jenny's brother washed dishes, Jenny washed dishes 4 times. This tells that the the times they washed dishes occur in the ratio 4 :1. If Jenny's brother washed dishes 8 times, Jenny has to have washed dishes 
times. The way Jenny's is doing the calculation implies that his brother washed dishes 
times. He calculation yields a wrong result.
You really just have to do 12.4 x 2 = 24.8 because half of 24.8 is 12.4.
Answer:
71
Step-by-step explanation:
[6x4(15/5)]+[2^2+(1x-5)]
BIDMAS (aka PEDMAS etc.)
Brackets
Indices
Division/Multiplication
Addition/Subtraction
[6 x 4(15/5)] + [2^2 + (1x-5)]
[6 x 4(3)] + [2^2 + (-5)]
[6 x 4(3)] + [4 + -5]
[6 x 12] + [4 + -5]
[72] + [4 + -5]
72 + [-1]
72 + - 1
72 - 1
71
The equation is y = 1/2 x + 13, where x is the number of days, and y is the length of the barrier
Answer:
The probability of hitting an odd number three times is 3.375 times more than the probability of hitting an even number three times..
Step-by-step explanation:
Probability of hitting an odd number = 3/5
Probability of hitting an odd number = 2/5
Probability of hitting an odd number three times = (3/5)^3
Probability of hitting an odd number three times = (2/5)^3
Now divide (3/5)^3 by (2/5)^3 we get:
(3/5)^3 / (2/5)^3
(3)^3/(2)^3
27/8 = 3.375
The probability of hitting an odd number three times is 3.375 times more than the probability of hitting an even number three times..
