There are 61 blue marbles
<em><u>Solution:</u></em>
Let "b" be the number of blue marbles
Let "r" be the number of red marbles
Given that bag contains blue marbles and red marbles, 75 in total
number of blue marbles + number of red marbles = 75
b + r = 75 -------- eqn 1
The number of blue marbles is 5 more than 4 times the number of red marbles
number of blue marbles = 5 + 4(number of red marbles)
b = 5 + 4r ------- eqn 2
Let us solve eqn 1 and eqn 2
Substitute eqn 2 in eqn 1
5 + 4r + r = 75
5 + 5r = 75
5r = 75 - 5
5r = 70
r = 14
From eqn 2,
b = 5 + 4(14) = 5 + 56 = 61
b = 61
Thus there are 61 blue marbles
Answer:
33000
Step-by-step explanation:
you do 60 times 10 cause theres 60 minutes in an hour and then you get that answer and the times 600 by 55
First, convert 5ft 1inch in inches, you will get 61inches, so the probability that you need to find is P(x≤5)
Find z score: Z=(61-67)/3 = -2, with this find the probability from the z table and you get 0.0228= 2.28%, for the answer multiply 10000 by the probability 0.0228*10000= 228 women expected to be shorter that 5ft 1inch (61inches)
