Each problem has one error. Find the error
and describe the incorrect step on the answer
sheet in the appropriate spot. Then solve the
problem.
x - y = 0
5x + 2y = 7
x = y
5x + 2y = 7
5y + 2y = 7
7y = 7
y = 1
x + 1 = 0
X = -1
Solution: (-1,1)
Describe the error in the field below.

the difference between a number and 5 is -2.

step-by-step explanation:

notice that the equation you are given has -2 (negative 2) on the right side, not 2. when you subtract 5 from a number n, you are finding the difference between the number and 5.

the difference between a number and 5 is -2.

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step-by-step explanation: vsfdvsfvd

d. 24+-0.114

step-by-step explanation:

the question requires us to calculate the approximate 95% confidence interval for the mean number of ounces of ketchup per bottle in the sample given the following statistics;

sample mean = 24

standard deviation, σ = 0.4

sample size , n = 49

the confidence interval for a population mean is calculated using the formula;

sample mean ± z-score*(σ/sqrt(n))

the z-score associated with a 95% confidence interval, from the standard normal tables, is;

1.96

substituting these values into the formula;

24 ± 1.96*(0.4/7)

= 24 ± 0.112

from the alternatives given, choice d is closest to the above expression;

no

step-by-step explanation:

answer