yamilecalvario2 yamilecalvario2
  • 25-10-2021
  • Mathematics
contestada

please help I don't understand ​

please help I dont understand class=

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akingbadeadeniji
akingbadeadeniji akingbadeadeniji
  • 25-10-2021

Answer:

5 five dollar and 7 one dollar

Step-by-step explanation:

  • let the number of one dollar be x
  • the number of five dollar be y

1x+5y=32

x+y=12

using elimination method

+x-x-y+5y-32+12=0

4y-20=0

4y=20

  • divide both side by 4

y=20/4 =5

so, if. y is 5 then x is

5y+x=32

5(5)+x=32

25+x=32

x=32-25

x=7

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