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3 years ago

Can someone please help me with question 7?

Mathematics

1 answer:

storchak [24]3 years ago

6 0

The goal is to raise AT LEAST $180, so this automatically indicates that the amount of keychains sold with the price must be the same or more than $180.

k = number of keychains

each keychain is $2.25

2.25k ≥ 180

divide both sides by 2.25 to get the k alone

k ≥ 80

The answer is 2.25k ≥ 180, k ≥ 80

(Hope this isn't confusing)

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Need help with finding my solution and graphing !

konstantin123 [22]

Answer:

Step-by-step explanation:

Both the equations that you modelled are correct.

Use the substitution method to solve the system of equations

$R+C = 526\\5R+4C=2327\\$

Take the first equation

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Now this becomes our third equation and now insert it into our second equation

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Now insert R = 223 in any equation. Lets insert it into equation number three

$C=526-R\\C=526-223\\C=303$

So 223 number of roll papers were sold and 303 number of candles were sold.

I have attached the graph below check it out.

Where both the equations of line intersect is our solution thus we can confirm that our answer is correct.

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