Answer:
x = - 27/8

Step-by-step explanation:
¹²⁾x/5 - ¹²⁾1/5 = ²⁰⁾x/3 + ¹⁵⁾1/4
12x - 12 = 20x + 15
- 12 - 15 = 20x - 12x
- 27 = 8x
x = - 27/8

There isn't enough information for me to help you. Could you attach a picture so that I can see the triangle and where angles B and C are? Thank you.
Multiply 100 pounds by 5%: 100 x 0.05 = 5 pounds.
Subtract that from the original weight:
100 - 5 = 95
He will weigh 95 pounds
Answer:4√(13)
Step-by-step explanation:
Adjacent=12
Opposite=8
Hypotenuse=√((adjacent)^2+(opposite)^2)
hypotenuse=√(12^2+8^2)
Hypotenuse=√(12x12+8x8)
Hypotenuse=√(144+64)
Hypotenuse=√(208)
Hypotenuse=√(16x13)
hypotenuse=√(16) x √(13)
Hypotenuse=4 x √(13)
Hypotenuse=4√(13)