You can do this by replacing x = -2y + 10 in second equation and solving for y then plug this value of y in first equation to find x then use these values of x and y in last equation to find zSHOW FULL ANSWER
-3, -1, and 1
-3 - 1 + 1 = -3
4*1= 4
4 - 7 = -3
Answer:
He spent 52.5 minutes reading.
Step-by-step explanation:
The equation from the word problem is 2(x+5)+25=140. Distribute 2 to the parentheses and get 2x+10+25=140. Combine like terms to get 2x+35=140. Subtract 35 from both sides and get 2x=105. Divide both sides by 2 and your final answer is x=52.5
The mean is 2.5. also there is mean, median, mode calculators online to help you with these in the future
Answer:6hrs and &270
8hours and &360
9.5hours and&427.50
Step-by-step explanation:
