Answer:
x=-10
Step-by-step explanation:
since there's a given 120 degrees, and it's a isosceles triangle, we know that the line adds up to 180 (where the 120 degrees is). so 120+x=180, the interior angle measures 60 degrees. That being said, the 3 angles measure 60 degrees also. now there's a right angle mark on top, so we find the angle of the smaller triangle (near angle 2) by doing 90-60=30 degrees.
angle 2 is said to be x+160, and there's a line, which tells us that they must add to 180.. so x+160+30=180
x+190=180
x=-10.
So 5 boys ,5 girls which means 5/10= 0.5
Answer:
Step-by-step explanation:
Interest = 15% of 200 = 15/100 * 200 = 15 * 2 = $30
The Amount he need to pay = 200 + 30 = $230
