Answer:
45
Step-by-step explanation:
KL = 12 because the triangle is isosceles ( base angles are congruent)
KJ = JM = 12 because the triangle is equilateral ( all angles are equal 60°)
the perimeter is
P = 9 + 12 + 12 +12 = 9 +36 = 45
Oh, I remember this one. Here's this if you need it, if it doesn't help then let me know.
20% off means you are paying 80% of the original price ( 100% - 20% = 80%)
Multiply the price of the tv by 80% to find the sale price:
500 x 0.80 = 400
Now multiply the sales price by 1 plus the tax rate to find final cost:
400 x 1.06 = 424
Final price including tax is $424
Answer:
20 ,70
Step-by-step explanation:
Complementary angles sum up to 90
2x + 4x + 30 = 90
6x + 30 = 90
Subtract 30 from both sides
6x = 90 - 30
6x = 60
x = 60/6
x = 10
2x = 2*10 = 20
4x +30 = 4*10 +30 = 40 +30 = 70
Answer:
Step-by-step explanation:
m∠1 = 2x and m∠2 = -3x+235
angle 1 and angle 2 are supplementary angle so they add up to 180°
m∠1 +m∠2 = 180°
2x -3x+235 = 180°
-x = 180-235
x=35
m∠1 = 2x = 2*35 = 70°
m∠2 = -3x+235 = -3*35 +235 = 235-105 = 130°
