Im trying to find it too, i said 12,10.5 and 15,11 but im not sure..
C, 1,020. There are 67 out of 100 students who do at least 2 hrs of chores a day, or 67%. Converting that to a decimal, you get .68, which you multiply by the number of students at the school to get your answer.
Answer:
A) x + x+1 + x+2
We don't need equation A)
B) 3*(x+2) = (x + X+1) +102
3x + 6 = 2x + 1 + 102
x = 97
Numbers are 97, 98 and 99
Step-by-step explanation:
The enclosed shape is that of a trapezoid. The area of a trapezoid is the product of the height of it (measured perpendicular to the parallel bases) and the average length of the two parallel bases. The formula is generally written ...
... A = (1/2)(b₁ + b₂)·h
Here, the base lengths are the y-coordinates at x=4 and x=9. The height is the distance between those two x-coordinates: 9 - 4 = 5.
You are expected to find the y-values at those two points, then use the formula for the area of the trapezoid.
You can save a little work if you realize that the average of the two base lengths is the y-coordinate corresponding to the average x-coordinate: (9+4)/2 = 6.5. That is you only need to find the y-coordinate for x=6.5 and do the area math as though you had a rectangle of that height and width 5.
Going that route, we have
... y = 2(6.5) - 1 = 13 - 1 = 12
Then the trapezoid's area is
... A = 12·5 = 60 . . . . square units.
Answer:
0..........
Step-by-step explanation:
