Answer and Step-by-step explanation:
This is the correct matching:
1. Coefficient: The number in front of a variable in a term.
2. Constant: A number; a term containing no variables.
3. Arithmetic sequence: A set of numbers where the difference is the same between any two consecutive terms.
4. Closed circle: A circle filled in to show that the point is a part of the solution set.
5. Algebraic expression: An expression involving one or more variable terms.
6. Common ratio: The ratio of a term to the previous term in a geometric sequence.
7. Common difference: The difference between any two consecutive terms of an arithmetic sequence.
3b
-15b is equivalent to the equation shown above.
2. Domain goes along the x-axis and the range is up the y-axis.
3.
<em>A </em> yes
<em>B </em>no
<em>C </em>yes
<em />
None of the above
these answers arent equal to the question
Answer:
56
Step-by-step explanation:
Let Davids's age = d
Let Marie's age = m
First part of the question tells us: d=4+(3m)
Second part of the question tells us: d=m+38
Sub in 'm+38' for d:
m+38=4+3m
3m-m=38-4
2m=36
m=18
d=m+38
=18+38
=56