Hey there!
Answer = -21
Explanation:
Let's solve your equation step-by-step.
x + 7 = -14
Subtract seven from both sides:
x + 7 - 7 = -14 - 7
x = -21
So therefore, that is how you found your answer: x = -21
Answer:
A.
Step-by-step explanation:
let me know if you want an explanation :))
Answer:
D. 8
Step-by-step explanation:
We have been given that the number of days that homes stay on the market before they sell in Houston is bell-shaped with a mean equal to 56 days. Further, 95 percent of all homes are on the market between 40 and 72 days.
As per empirical rule 95% of the data on bell curve lies between 2 standard deviations of mean.
So we can set an equation as:
or





Therefore, the standard deviation for our given data is 8 and option D is the correct choice.
Step-by-step explanation:
let blue marbles= B
yellow marbles = Y
red marbles = R
Answer:
The number is <u>less than</u> 3.5
Step-by-step explanation:
Let us break up and convert each individual phrase into its equivalent in an equation.
"Three time" is 
"The difference of a number and three" is (3-x)
"Is greater than" is >
"The number decreased by five" is (x-5)
We can now put all of these parts together to get our equation

Now, we can simplify this and solve for x
