Answer:
I think so.
Step-by-step explanation:
With letters, no, and some shapes would be reversed, like a triangle with lengths that are all different from eachother.
The ratio of boys to girls at a school is 9 to 11. If 400 students attend the school, how many are girls?
2 answers:
Answer: 220
Step-by-step explanation:
Given : The ratio of boys to girls at a school is 9 to 11.
Let the number of boys be 9x and the number of girls be 11x.
Since there are 400 students attend the school.
Then we have the following equation :-
Now, the number of girls = 11x = 11(20)=220
Hence, there are 220 girls.
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Answer:
Option A. one rectangle and two triangles
Option E. one triangle and one trapezoid
Step-by-step explanation:
step 1
we know that
The area of the polygon can be decomposed into one rectangle and two triangles
see the attached figure N 1
therefore
Te area of the composite figure is equal to the area of one rectangle plus the area of two triangles
so
step 2
we know that
The area of the polygon can be decomposed into one triangle and one trapezoid
see the attached figure N 2
therefore
Te area of the composite figure is equal to the area of one triangle plus the area of one trapezoid
so
