The ratio of boys to girls in Ella's grade is 3 to 4. The ratio of boys to girls in Jayla's grade is 4 to 10. Each grade has 40
1 answer:
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Answer:
The height of the building is
Step-by-step explanation:
Let
x--------> the height of the building
y------> the long of the shadow of the building
m----> the height of Will
n-----> the long of the shadow of Will
we know that
By proportion
we have
substitute the values