That's the second one,
180 - x = r
Whenever two lines cross we get congruent opposite angles and supplemental adjacent angles, i.e. they add to 180 degrees.
The first one is almost right; we have r+y+z=180 and r+x=180 so x=y+z not quite what was written.
Answer:
Step-by-step explanation:
Let the capacity of the bin is x gallons.
1/2 gallon is 2/3 of x
<u>Convert this into equation and solve for x:</u>
- 1/2 = 2/3x
- x = 1/2 : 2/3
- x = 1/2 * 3/2
- x = 3/4
3/4 gallons of water will fill the bin
Answer:
Let x be the number;
We solve the equation x ÷ 4 - 5 = 15;
Then x ÷ 4 = 20;
Finally x = 80;
Step-by-step explanation:
