Answer:
∠ B = 60°
Step-by-step explanation:
The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
(10x - 45)° is an exterior angle of the triangle , then
10x - 45 = 3x + 4x = 7x ( subtract 7x from both sides )
3x - 45 = 0 ( add 45 to both sides )
3x = 45 ( divide both sides by 3 )
x = 15
Then
∠ B = 4x = 4 × 15 = 60°
This question is a little tricky. Carla had a bill of $15, which we will add to the cost of Rob's lunch. They left a 20% tip on the TOTAL cost of both their lunches, which should equal $6. 20% is equivalent to 0.2. So, the equation is 6=0.2(x+15). In other words, 20% of the sum of Carla and Rob's lunches is 6 dollars.
Answer: 6=0.2(x+15)
Answer: y=2
3y+2=6y-4
6=3y
y=2
Answer:
0
Step-by-step explanation:
8+56/-7x-4
8+(-8)x-4
0x-4
0
Hope this helps ;) ❤❤❤
Answer: x = In (3/4)
Step-by-step explanation:
24 x (e^x)^2 -6 = 10 e^x
24t^t-6=10t
t=3/4
