Answer:
x=70, y=55
Step-by-step explanation:
Since the angle "y" and 2x-15 form a straight line, that means the sum of the angles, must be 180 degrees.
So using this we can derive the equation: 
The next thing you need to know is that the sum of interior angles of a triangle is 180 degrees, so if we add all the angles, we should get 180.
So using these we can derive the equation: 
So, in this case we simply have a systems of equations. We can solve this by solving for x in the second equation (sum of interior angles), and plug that into the first equation.
Original Equation:
Subtract 2y from both sides
Now let's plug this into the first equation
Plug in 180-2y as x
Distribute the 2
Combine like terms
Subtract 345 from both sides
Divide both sides by -3
So we can plug this into either equation to solve for x
Substitute in 55 as y
Subtract 110 from both sides
Answer:
you decude to go put for a walk. You walk 8km to the north in 2 hours, then you walk 3km to the south in 1 houryou decude to go put for a walk. You walk 8km to the north in 2 hours, then you walk 3km to the south in 1 houryou decude to go put for a walk. You walk 8km to the north in 2 hours, then you walk 3km to the south in 1 houryou decude to go put for a walk. You walk 8km to the north in 2 hours, then you walk 3km to the south in 1 hour 6655.22591
Answer:
The ticket increased 57% of its original price
The baggage price was 44.5 increased 0.11% and then became 50
Step-by-step explanation:
So if the amount was 200 and now is 350, we should use division.
200 ÷ 350 = 0.5714285714285714 which you can round to 0.57 or as many digits as the question asked for. In thise case I will use 0.57
0.57 converted to percentage is 57%
About the second question
now you know the amount after increase and the percentage. So all you have to do is reverse.
11% = 0.11
0.11 ✕ 50 = 5.5
this means the price increased 5.5
50 - 5.5 = 44.5
Step-by-step explanation:
11/4 x + 3/2y = 34
since for 3/2teaspoon of balsamic vinegar 11/4 teaspoon of olive oil is added.
hence the number of times you add 3/2teaspoon of balsamic vinegar should be the same as the number of times you add 11/4teaspoon of olive oil.
Hence y = x
11/4y + 3/2y = 34
multiplying through by 4 gives:
11y + 6y = 4 × 34
17y = 4 × 34
dividing both sides by 7 gives:
y = 4 × 2 = 8
x = 8
hence you add 11/4(8) = 22 table spoon of olive oil to 3/2(8) = 12 table spoon of balsamic vinegar to get 34 teaspoon of bread dip.
