I don't understand................
5x + 25y = 60....multiply by -3
3x + 15y = 42....multiply by 5
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-15x - 75y = - 180 (result of multiplying by -3)
15x + 75y = 210 (result of multiplying by 5)
-------------------add
0 = 30...incorrect.....this system has no solutions
First you would have to find the cost for 1 medium pizza.
10.50/3=3.5
It costs $3.50 for 1 medium pizza
Next, you would have to multiply 3.5 times 10.
3.5*10=35
It costs $35.00 for 10 medium pizza's.
Answer:
5 > -8 , and 7 > -11
Step-by-step explanation
5 and 7 are greater than negative numbers
