Answer:
B
Step-by-step explanation:
Rocco: of the job per hour
Giulia: of the job per hour
Together: of the job per hour
Rocco + Giulia = Together
3x + 21 = 7x
21 = 4x
It will take Giulia
hours to paint the room by herself.
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Giulia:
B)
1=1
so it's true
Answer:
Right angles are congruent
Step-by-step explanation:
One right angle can be transformed to another using rigid transformations such as translation ,rotation and reflection.This is basically the definition of congruence because the idea is to transform one object to another.
Answer:
14.9 miles
Step-by-step explanation:
If the road was created, the 3 different roads would form a right triangle where the new road would be the hypotenuse and the other 2 roads would be the legs.
We can use the pythagorean theorem to find the length of the hypotenuse, or the new road:
a² + b² = c²
14² + 5² = c²
221 = c²
14.9 = c
= 14.9 miles
Do (10 x 10) then (10 x 20), and then add your two answers together.
Its simple :)
<em>two hundred and eighty five</em>
