Answer:
The subtraction property of equality
Option A is correct
Explanation:
The given equation is:
12 - x = 7x + 32
Subtract 12 from both sides
12 - 12 - x = 7x + 32 - 12
-x = 7x + 20 (Step 1)
From step 1 above, subtract 7x from both sides
-x - 7x = 7x - 7x + 20
-8x = 20 (Step 2)
Since we subtracted 7x from both sides to get step 2, the justification for step 2 is the subtraction property of equality
Answer:
(0°F − 32) × 5/9 = -17.78°C
= -17.8°C
Each neighbor will get one whole pie plus a third of the remaining pie, so 1 1/3
Guessing this is a combined work problem??? You forgot to post the question. I can solve for the time it takes them to complete the house together..
1/3 + 1/5 = 1/t
5/15 + 3/15 = 1/t
8/15 = 1/t
15/8 = t
1.875 hrs
Answer:
The mean apple weight is different from 8oz
Step-by-step explanation:
Claim : An apple farm claims that the average weight of all their apples is 8oz.
n = 20
Standard deviation =s = 0.95
Since n < 30
So we will use t-test
x = 7.77
Substitute the values :
Since we are not given the significance level
So, we will take 5%
So,α = 0.05
Degree of freedom = df = n-1 = 20-1 = 19
So, using t table
Since t critical > t statistic
So, we accept the null hypothesis.
So, The mean apple weight is different from 8oz
