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vesna_86 [32]
3 years ago
5

Tickets for an Amtrak train cost $22 for children and $48 for adults. Josie paid $3,278 for a total of 84 tickets. How many chil

dren tickets and how many adult tickets did Josie buy?
Mathematics
1 answer:
timama [110]3 years ago
5 0

Answer:

29 child 55 adult

Step-by-step explanation:

x+y=84

22x+48y=3278

x=29,y=55

hope it will help, if not, sry, u can comment below to ask me!

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dale is driving to Miami. suppose that the distance (in miles) is a linear function of his total driving time (in minutes). dale
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If we let:
t = time (min's) driving
d = distance (miles) from destination
Then we can represent the above information as:
t = 40: d = 59
t = 52: d = 50
If we think of this as a graph, we can think of the x-axis representing time and the y-axis representing the distance to the destination. Being linear, the function will be a line, i.e. it will have a constant gradient. If you were plot the two points inferred from the information and connect the two dots, you will get a declining line (one with a negative gradient) representing the inversely proportional relationship or equally, the negative correlation between the time driving and the distance to the destination. The equation of this line will be the linear function that relates time and the distance to the destination. To find this linear function, we do as follows:

Find the gradient (m) of the line:
m = Δy/Δx
In this case, the x-values are t-values and our y-values are d-values, so:
Δy = Δd
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Δx = Δt
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= 12
m = -9/12 = -3/4
Note: m is equivalent to speed with units: d/t

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y - y₁ = m(x - x₁)
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So after 70 min's of driving, Dale will be 36.5 miles from his destination.
3 0
3 years ago
The perimeter of the triangle
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