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lapo4ka [179]
3 years ago
15

If 3x+2y=33 and 2x+3y=42 what does x+y equal?

Mathematics
1 answer:
xenn [34]3 years ago
6 0

Answer:

15

Step-by-step explanation:

3x+2y=33

2x+3y=42

Add the two equations together:

5x+5y=75

Divide both sides by 5:

x+y=15

Hope this helps!

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I don't fully understand what you're asking.

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Help me with this questing plsss
docker41 [41]

Answer:

6.25n + 3.50

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Step-by-step explanation:

Break down the important information given in the problem.

The one-time delivery fee is 3.50. This is only paid one time an never again, making it the <u>constant</u>, a number that does not change.

Each lunch costs 6.25. This amount will increase depending on how many times Mr. Jackson orders lunches, "n" times. This number is the <u>rate</u> because it changes. The rate is attached to the variable.

If you add the amounts together, that is the total cost of ordering lunches.

6.25n + 3.50

(Reember expressions do not have the equal sign).

To find the cost of ordering 5 lunches, use the expression. Substitute "n" for 5 because "n" represents the number of lunches ordered.

6.25n + 3.50

= 6.25(5) + 3.50   Simplify by multiplying 5 and 6.25

= 31.25 + 3.50    Add the two values

= 34.75       Total cost of 5 lunches

Therefore the cost of ordering 5 lunches is $34.75.

8 0
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