Answer:
Answer attached
Step-by-step explanation:
Answer:
-7
Step-by-step explanation:
- The sum of all angles in a triangle will be equal to 180.
- So we add x+46+x+71+77=180*
- 2x+194=180
- 2x= -14
- x=-7
Answer:
T = 3.5 hours
Step-by-step explanation:
this is a rate problem.
an experienced surveyor takes 7 hours to survey a roadbed
an apprentice surveyor takes 9 hours to survey a roadbed
the rate of the experienced surveyor =
the rate of the apprentice surveyor = 
if the two work together , 
T = 
T = 3.5 hours
Move the decimal's place 7 times to the right. That means that 12.5*10^7 = 125*10^6. Now add 6 zeros: 125,000,000.
You can actually use a calculator to check your answers if it is allowed.