25-7.50= 17.50
17.50/2.50= 7
she needs to make at least 7 bracelets and sell them
Y=x/2-2 -> y+10=x/2 -> x=2(y+10)
Answer: ∠B = 82°
Step-by-step explanation:
To find the measure of B, you have to find the measure of A.
m∠143° + m∠A = 180° because they are a linear pair
m∠A + 143 = 180
Subtract both sides by 143
m∠A = 37
Since you know the measure of angle A, you can find angle B
Angle A, B, and C should add up to 180° as triangles' angles sum up to 180°.
∠B + ∠A + ∠C = 180°
Substitute
∠B + 37 + 61 = 180
∠B + 98 = 180
Subtract 98 from both sides
∠B = 82°
The angles are supplementary, so x + 5 + 2x -8 = 180. Solve for X. I distributed 2(x -4) to get 2x - 8.
3x - 3 = 180
add 3 to both sides
3x = 183
divide by 3 to both sides
x = 61
