This is a system
x is the number of advanced tickets sold
y is the number of same day tickets sold
once you label your variables then write the equations
x+ y = 45 total tickets sold
20x + 25y = 1050 money taken in
multiply the top equation by -20 and the x will drop out
-20x - 20y = -900
20x + 25y = 1050. Add the equations result is
5y = 150, divide by 5 ,
y or same day tickets cost $30
substitute 30 into first equation
x + 30 = 45 therefore x = 15
280 adults were there in the train.
What is linear equation definition and example?
- The definition of a linear equation is an algebraic equation in which each term has an exponent of one and the graphing of the equation results in a straight line.
- An example of linear equation is y=mx + b. noun. 20.
- A polynomial equation of the first degree (such as x = 2y - 7)
Given,
Total children are in the train = 40
1/8 are children in train and no of children in train ,
∴ 1/8 × x = 40
x = 40 × 8 ⇒ 320
The no of passenger in train = 320
in total passenger, 40 are children .
So, rest adults passengers are = 320 - 40 ⇒ 280
There fore, 280 adults were there in the train.
Learn more about linear equation
brainly.com/question/13952160
#SPJ4
Here, Original Equation: y = -2x - 5
Compare it with, y = mx + b
So, Slope(m) = -2
Parallel line slope = -2 [ Same ]
Now, y - y1 = m(x - x1)
y - 4 = -2(x + 8)
In short, Your Answer would be Option B
Hope this helps!
Answer:
A, B, C
Step-by-step explanation:
A) A triangle with 3 equal sides is equilateral.
B) A triangle with 2 equal sides is equilateral.
C) All angles of an equilateral triangle are 60 degrees, and thus acute.