70% of the people were adults
First you subtract 1500-450 = 1050
Then you divide 1050/1500 = .7
Step 1. Multiply first equation with -3 and the second one with 2. You'll get:
Step 2. Add both equations together. You'll get:
, which gives x = -2
Step 3. Replace x = -2 in the first equation and calculate y.
The solution is: x=-2, y=5
In the following Earliest Start Time (EST) graph, assume each unit of time is an hour.
How many hours will it take until Task F can be started?
14 hours
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B because the sum of 2 sides must be GREATER than the 3rd side
Answer: CONFOUNDING VARIABLES
Step-by-step explanation: Confounding variables are
unexpected external factor that affects both variables of interest, confounding variables usually gives the false impression that changes in one variable leads to changes in the other variable, when, in Actual, it is the external factor that caused the change being investigated. Confounding variables usually leads to wrong conclusions during research and experiments and are capable of causing biased outcomes when the real cause and effect relationship is not determined.