Answer:
Hot dogs sold: 44
Sodas sold: 132
Step-by-step explanation:
This is is a problem of a system of two equations with two unknowns. This can be solved in multiple ways (the substitution method, the elimination method, the equalization method, the graphic method...) . I will resolve it using the equalization method that is a little bit more practical from my point of view.
First, we have to determine the system by the data we are given:
Where:
Secondly, we are going to isolate any variable from both equations. I chose to isolate Y.
Thirdly, we equalizate both equations.
So we get:
Then we isolate X.
So now we know that the number of hot dogs sold was 44! If the sodas sold were three times the number of hot dogs sold, then we know that there were 132 sodas sold at the hockey game!
Answer:
x = - 2
Step-by-step explanation:
Given
y = 4x² + 16x - 18
with a = 4, b = 16 , then the equation of the axis of symmetry is
x = - = - = - 2
3x + 2x - 5
Answer:
5x-5
Step-by-step explanation:
Answer:
5−5
HOPE THIS HELPS :)
Ratios are the same thing as fractions:
5:6 OR 5/6 does not equal 3/4
Answer : Present value
Present value is the Future sum of money that is the sum accumulated after some years given a specific rate of interest.
Present value is also known as present discounted value that is the value of an expected income determined in the given time of valuation
the current value of a future sum of money called Present value