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tekilochka [14]
3 years ago
6

Explain which method you used for solving the system of equations in which x represents the number of bottles of water sold and

y represents the number of sandwiches sold. x + y = 390 and 2x + 4y = 1260
Mathematics
2 answers:
bogdanovich [222]3 years ago
9 0

Answer: Sample Response :Use the linear combination method.

Multiply the first equation by –2 to create opposite terms for x.

Multiply the first equation by –4 to create opposite terms for y.

Add the system of equations to eliminate a variable.

Step-by-step explanation:

Natasha2012 [34]3 years ago
5 0

Here is the sample response given at the end of the question on Edginuety:

Use the linear combination method.

Multiply the first equation by –2 to create opposite terms for x.

Multiply the first equation by –4 to create opposite terms for y.

Add the system of equations to eliminate a variable.

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Answer:

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Step-by-step explanation:

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The population of a certain city was 112,000 in 1998, and the observed relative growth rate is 4% per year. (a) Find a function
Zanzabum

Answer:

See Explanation

Step-by-step explanation:

Now;

From;

P=Poe^kt

Where;

P = population at time=t

Po = population initially present

k = growth rate

t = time taken

a) The function is;

P= 112,000e^0.04t

b) In the year 2004, the population will be

P= 112,000e^0.04(6)

P= 142380

c) 200,000 =112,000 e^0.04t

200,000/112,000 =  e^0.04t

1.786 = e^0.04t

ln 1.786 = ln e^0.04t

ln 1.786= 0.04t

t = ln 1.786/0.04

t = 14.5 years

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2 years ago
Need help with number 1.
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Step-by-step explanation:

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