») If 5y = 25, which property of equality was used to keep the equation 5y - 7 = 25 - 7 equal?

») Convince Me!

What other properties of equality could you apply to

keep the equation 5y = 25 equal? Give an example of

each.

a. Subtraction property

b. Addition property and Multiplication property

Step-by-step explanation:

Given

Solving (a): Which property is applied to

The property applied is the subtraction property of inequality, and it states that:

If

Then

So, in this case:

Solving (b): Other properties

1. The additive property of equality

If

Then

So, the expression can be written as:

When 12 is subtracted from both sides, the equation returns to the original

i.e.

2. The multiplication property of equality

If

Then

So, the expression can be written as:

When both sides are divided by 2, the equation returns to the original

i.e.

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;

for me what is finding a good play list and going out because i can not lay down and relax so i usually go to a coffee shop. i also use the gum trick and this actually works. another advice is highlighting subjects it really does me remember certain things

step-by-step explanation: