Answer:
I belive Joe mowed 51 lawns and Marty mowed 23.
Step-by-step explanation:
Joe and Marty each mowed a total number of 15 lawns last week and they earned the same amount of money.
It is defined as the relation between two variables if we plot the graph of the linear equation we will get a straight line.
If in the linear equation one variable is present then the equation is known as the linear equation in one variable.
Joe earns a base amount of $15 and $8 per lawn.
Marty earns a base amount of $45 and $6 per lawn.
Let's suppose they both mow x number of lawns.
Then Joe's total income is given by:
$(15+8x)
And Marty's total income is given by:
$(45+6x)
As they earned the same amount of money, mathematically:
(15+8x) = (45+6x)
15 + 8x - 6x = 45 +6x - 6x (subtract by 6x on both sides)
15 + 2x -15 = 45 -15 (subtract by 15 on both sides)
2x = 30
x = 15 (divide by 2 on both sides)
If we put x = 15 in Joe's total income expression, we get:
15+8×15 ⇒135
If we put x = 15 in Marty's total income expression, we get:
45+6×15 ⇒135
Thus, Joe and Marty each mowed a total number of 15 lawns last week and they earned the same amount of money.
Learn more about the linear equation here:
brainly.com/question/11897796
