Answer:
40 girls 80 boys
Step-by-step explanation:
80/2=40
40+80=120
Answer:
14.87 units
Step-by-step explanation:
The sides of all right triangles share the same relationship known as the Pythagorean Theorem a² + b² = c². Substitute the lengths of the triangle into the theorem and solve for the unknown side. Since the problem does have an attached a picture, assume that a = 10, b = 11, and c = x.
10² + 11² = x²
100 + 121 = 221²
221 = x²
√221 = √x²
14.87 = x
Must do multiplication first....
-2/5 - 3/7 x 7/10
-2/5 - 21/70 (I'll reduce 21/70)
-2/5 - 3/10
Now you have to find a common denominator and subtract
-35/50 = -7/10......is what I get
