Answer:
The definition of a linear equation is an algebraic equation in which each term has an exponent of one and the graphing of the equation results in a straight line. An example of linear equation is y=mx + b.
Step-by-step explanation:
Answer:
19.4
Step-by-step explanation:
50% is one half
so 9.7 is half of ....
Then .... is twice 9.7
.... = 2 × 9.7 = 19.4
Ok so the average is 50
average of x number of things is
(add value of all things)/x=average
4 test scores needed
so divide by 4
3 test scores ar known
average is 50
x= missing score
(43+48+42+x)/4=50
times 4 both sides
133+x=200
minus 133 both sides
x=67
a score of 67 is needed