Find the solution to the system of equations: x + 3y = 7 and 2x + 4y = 8
1. Isolate x in the first
equation:
2. Substitute the value for x into the second equation:
x = 7 -3y
3. Solve for y:
2(7 - 3y) + 4y = 8
14 - 6y + 4y = 8
14 - 2y = 8
-2y = -6
4.
Substitute y into either original equation:
y = 3
5. Write the solution as an ordered pair:
X + 3(3) = 7

The weight of full–grown tomatoes at a farm is modeled by a normal distribution with a standard deviation of 18.4 grams. the 95 percent confidence interval for the mean weight of the tomatoes is calculated using a sample of 100 tomatoes. what is the margin of error (half the width of the confidence interval)?

Now max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.

I’m stuck on this equation, anyone got the answer?