R=3*S
in 6 years ⇒R+6=2*(S+6)
3*S+6=2*S+2*6
3S+6=2S+12
3S-2S=12-6
S=6
R=3*6=18 ( Ralph 's age now)
in 6 years Ralph's age will be 3*x+6
D. It is called the ordered pair
he correct statement is:
"The temperature started at 78 degrees and decreased by 6 degrees, then decreased by 5 degrees."
<h3> Which statement best describes this expression?</h3>
Here we have the expression:
78+(-6)-5
So we start at 78, then we subtract 6, and then we subtract 5.
This means that the initial temperature is 78, then it decreases by 6 degrees, and then it decreases again by 5 degrees.
Then the correct statement is:
"The temperature started at 78 degrees and decreased by 6 degrees, then decreased by 5 degrees."
Which is the third statement counting from the top.
If you want to learn more about temperatures:
brainly.com/question/26040104
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The table containing the data needed for this problem is attached on this answer. This data is used to determine the best fit line that is extracted from this multitude of points given. Best fit line is described as a line in which the variation of each point to the line is the minimum. We plot the data using MS Excel and is shown in the figure attached as well. We determine the trendline of the graph by the function in MS Excel. The equation of the trendline is expressed as <span>y = -26.059x + 722.63 in which the coefficient of determination, r^2 = 0.8947. </span>
Answer:
x < 9 ; x > 15
Step-by-step explanation:
| x - 12 | > 3
x - 12 > 3
x > 12 + 3
x > 15
-x + 12 > 3
-x > 3 - 12
-x > -9
x < 9
Combined:
x < 9 ; x > 15