Answer: In the last steps, instead of multiply each side by 3, he has to divide each side by 3.
Step-by-step explanation:
Hi, Tobin makes the mistake in the last steps.
3(x-1.25) = 11.25
3x-3.75= 11.25
3x-3.75+3.75= 11.25+3.75
3x = 15
Until this step is the work ok.
Now, instead of multiply each side by 3, he has to divide each side by 3:
So:
3x /3 = 15/3
x = 5
Feel free to ask for more if needed or if you did not understand something.
Answer:
10 m
Step-by-step explanation:
If the area of a square is 50 m2, then the length of each side will be m, to get the diagonal length, after dividing the square by joining the points of the diagonal with a line, it forms two right angles with length m each.
the diagonal length represent the hypotenuse side of each of the right angle, knowing the pythagoras theorem:
, so we have:
diagonal = 10 m
Answer:
Step-by-step explanation:
true false true false
Answer:
-5x
Step-by-step explanation: