I think the answer is 4.5 hours. Equation: y = 2x + 16.5.
Where y represents the total area painted by each person and x represents the time.
There's multiple ways to solve systems of equations, but one method is well suited to this particular problem.
Subtract one entire equation from the other, as in: y = 2x + 16.5 - y = 4x + 7.5 ---------------------- 0 = -2x + 9
Then solve for x, using basic algebra: 2x = 9 x = 9 / 2 x = 4.5
To check your answer, you can plug the x value into both equations: 2 (4.5) + 16.5 = 25.5 4 (4.5) + 7.5 = 25.5 This proves that, at 4.5 hours later, both Naomi and Claire will have painted 25.5 square feet each.
You could also check the answer by graphing both equations and finding the point where the line meets. You will see that the intersection point is (4.5, 25.5).
Hoped I helped!
Answer:
ok so you have to see if its the right triangle, so basicaly like count the squares on the triangle. It may be the right triangle cause all triangle are the same, just up side down, etc.
Step-by-step explanation:
But its not the right triangle, theres no points at the end.
sorry if its not right!
On .5 so from 0 go over 2 lines and put it in between the 2nd and 3rd line
Substitute the values into the equation
2(2)+4(-1)-5(1)
4-4-5
-5
Answer Do it
Step-by-step explanation 165 divided by 100 =x times 43
