Answer:
∠3 = 81
Step-by-step explanation:
Interior angles in a triangle add up to equal 180°
Hence, 58° + 41° + ∠3 = 180
58 + 41 = 99
99 + ∠3 = 180
* subtract 99 from each side *
99 - 99 cancels out
180 - 99 = 81
we're left with ∠3 = 81°
Answer:
x = 4
Step-by-step explanation:
2x - y = 11
X + 3y = -5
Multiply the first equation by 3
3(2x - y )= 11*3
6x - 3y = 33
Add this to the second equation to eliminate y
6x - 3y = 33
X + 3y = -5
--------------------
7x = 28
Divide by 7
7x/7 = 28/7
x = 4
130 if you round that to the nearest whole number then you’ll get 139
Answer:
the total distance walked is 20 km
Step-by-step explanation:
The computation of the total distance he walked is shown below:
Let us assume the total distance walked be d
Now the total time would be
Total time = (d ÷ 2) ÷ 8 + (d ÷ 2) ÷ 5 = 3.25
d ÷ 16 + d ÷ 10 = 3.25
(5d + 8d) ÷ 80=3.25
13d = 260
d = 20 km
Hence, the total distance walked is 20 km