John spent 2.4 hours working on the project.
Step-by-step explanation:
Let,
Number of hours worked by Dawn = x
Number of hours worked by Keith = y
Number of hours worked by John = z
According to given statement;
Dawn spent 1.2 hours less than 6 times as many hours on the project as John did.
x = 6z-1.2 Eqn 1
y = 5z+1.2 Eqn 2
As Dawn and Keith worked same amount, therefore,
Eqn 1 = Eqn 2
![6z-1.2=5z+1.2\\6z-5z=1.2+1.2\\z=2.4](https://tex.z-dn.net/?f=6z-1.2%3D5z%2B1.2%5C%5C6z-5z%3D1.2%2B1.2%5C%5Cz%3D2.4)
John spent 2.4 hours working on the project.
Keywords: linear equations, addition
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Answer:
1500-325
=1125
Step-by-step explanation:
1500 minutes minus 325 minutes is equal to 1125 minutes remaining
The probability that he lost less than 19 pounds is 7 / 9.
According to statement
The weight loss by individual is 12 Pounds
So, by uniform distribution probability
P(c ≤ x ≤ d) = (d - c) / (b - a)
Substitute the values in it then
P(12 ≤ x ≤ 19) = (19 - 12) / (20 - 11)
P(12 ≤ x ≤ 19) = 7 / 9
So, the probability that he lost less than 19 pounds is 7 / 9.
Learn more about UNIFORM DISTRIBUTION PROBABILITY here brainly.com/question/14114556
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Answer:
Step-by-step explanation:
0
,
8