What is the probability of rolling a 3 on a single die?

The per hour rate of first mechanic is $95 and per hour rate of $75.

Step-by-step explanation:

Let,

First mechanic's rate = x

Second mechanic's rate = y

10 hours charges of first mechanic = 10x

5 hour charges of second mechanic = 5y

According to given statement;

10x+5y=1325       Eqn 1

x+y=170               Eqn 2

Multiplying Eqn 2 by 10

Subtracting Eqn 2 from Eqn 3

Dividing both sides by 5

Putting y=75 in Eqn 2

The per hour rate of first mechanic is $95 and per hour rate of $75.

Keywords: linear equation, elimination method

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Answer:

The 4 interior angles in the square are each 90 degrees. The four angles formed by the intersection of the 2 diagonal lines are each 90 degrees. The rest of the angles <PQT, <RQT, etc. Are all 45 degrees.