There are 65 boys, and the boy ratio is 13: so to find how they got that, divide 65 by 13 and that is 5. Since we now know it is the amount of people, divided by 5, we can take the girl ratio (15) and multiply it by 5 to get the amount of girls (which is 75). You need to find the total amount of students in the class so add the boys and girls (65+75) and get 140 total students
Answer:
Work it out by grouping them
Answer:
= 37 cm^2
Step-by-step explanation:
To find the area of the figure, we will split it into 2 separate shapes.
We have a long skinny rectangle and a shorter wider rectangle.
The long skinny rectangle is 15 cm by 2 cm
The area is given by
A = l*w
A = 15*2 = 20 cm^2
The shorter wider rectangle is 7 cm by (3-2) cm or 7 cm by 1 cm
The side length of the bottom rectangle is found by subtracting the length of the skinny rectangle from the total side length.
( The drawing is not to scale)
The area is given by
A = l*w
A = 7 * 1 = 7 cm^2
To find the area of the figure, we add up the area of the two rectangles
A total figure = rectangle 1 + rectangle 2
= 30 + 7
= 37 cm^2
C.
If you properly distribute C it will give you the above equation.
1/4 * -x = -1/4x
AND
1/4 * 2 = 1/2
