Answer:
Option C. The robin flies fastest because its rate is 15 m/s
Step-by-step explanation:
Let
x -----> the time in seconds
y ----> the distance in meters
The speed is equal to divide the distance by the time
In this problem, the slope or unit rate of the linear equation is the same that the speed
<em>Robin's Flight</em>
<em>Find the slope</em>
The formula to calculate the slope between two points is equal to
take two points from the table
(2,30) and (3,45)
substitute in the formula
<em>Cardinal's Flight</em>
<em>Blue Jay's Flight</em>
take two points from the graph
(0,0) and (2,20)
substitute in the formula
Compare
The robin flies fastest because its rate is 15 m/s
Using the concept of function, it is found that:
- Graphs B, C, D and F are functions.
- Graphs A and E are not functions.
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- In a function, one value of the input can be related to only one value of the output.
- In a graph, it means that for <u>each value of x(horizontal axis), there can only be one respective value of y(vertical axis). </u>That is, if a vertical line is traced at a value of x, it can cross the function only once, that is, there cannot be points aligned vertically.
- In graphs B, C, D and F, it can be seen that <u>for each x value, there is only one respective y-value</u>, thus, they are functions.
- In graphs A and E, for <u>values of x,</u> such as x = 3 for both, there are <u>two respective values of y</u>, thus they are not functions.
A similar problem is given at brainly.com/question/12463448
To find this you have to do: (1+2+3+4+5+6+7+8+9+10+11+12)x2
This will give you 78 x 2. The bell will toll 156 times a day.
Three hundred ten million seven hundred sixty three thousand one hundred thirty six.
you never say 'and' when verbally saying a number because in math it implies a decimal is in place.
Let a be the number of adults which bought a ticket and c the number of children who bought a ticket. We can use the information given to assemble a system of equations.
Tickets cost 8 dollars for a, 1 dollar for c, and the total amount made is 100
8a + c = 100
The total of a and c is 30
a + c = 30
We can now subtract one equation from the other to use the elimination method to solve the system.
8a + c = 100
-(a + c = 30)
7a + 0 = 70
We can now solve for a.
7a = 70
a = 10
There were 10 adults who bought tickets. We can use this value as a known, plugging it into an equation to solve for the number of children.
a + c = 30
10 + c = 30
c = 20
So, the final answer is "20 children and 10 adults Equation 1: a + c = 30 Equation 2: 8a + c = 100".
