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kondor19780726 [428]
3 years ago
11

Write and graph exponential functions to model the number of students at school A and at school B as a function of number of yea

rs. In about how many years will the number of students at both schools be approximately the same? Explain how you can use a graph to determine the answer
school A:240 decreasing at an annual rate of 2%
school B:180 increasing at an annual rate of 3%
Mathematics
1 answer:
Westkost [7]3 years ago
8 0

Answer:

2^8 2x2x2x2x2x2x2x2=256

Step-by-step explanation:

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After 2 months
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2 years ago
Al bob and carl can life 240 pounds.
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Answer:

1020 POUNDS.

Step-by-step explanation:

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5 0
2 years ago
A waitress sold 15 ribeye steak dinners and 18 grilled salmon​ dinners, totaling ​$559.81 on a particular day. Another day she s
Orlov [11]

Let  the steaks = X and the salmon = y.

Set up two equations:

15x + 18y = 559.81

19x + 9y = 583.66

Now using the elimination method:

Multiply the second equation by -2, then add the equations together.

(15x+18y=559.81)

−2(19x+9y=583.66)

Becomes:

15x+18y=559.81

−38x−18y=−1167.32

Add these equations to eliminate y:

−23x=−607.51

Divide both sides by -23 to solve for x:

x= -607.51 = -23 = 26.413478

Now you have the cost for a steak.

To solve for the cost of the salmon, replace x with the value in the first equation and solve for y.

15(26.413478) + 18y = 559.91

396.202174 + 18y = 559.81

Subtract 396.202174 from both sides:

18y = 163.607826

Divide both sides by 18:

y = 163.607826 / 18

y = 9.089324

Round both x and Y to the nearest cent:

X (Steaks) =$26.41

Y (Salmon) = $9.09

7 0
3 years ago
Which graph represents y = -2x
mr Goodwill [35]

Answer: Second Option, with a downward trend from left to right.

Step-by-step explanation:

We just have to find a graph that matches up with a slope of -2 or a rise/run of -2/1.

7 0
3 years ago
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