priya1911
priya1911 priya1911
  • 08-03-2016
  • Mathematics
contestada

4 bags of cement do 18m squared how many metre squared can be done with 7 bags

Respuesta :

dustysbabe420 dustysbabe420
  • 08-03-2016
18 divided by 4= 4.5 meters squared
4.5 multiplied by 7= 31.5 meters squared
Answer Link
apologiabiology
apologiabiology apologiabiology
  • 08-03-2016
4=18
7=x
these ar ratios
4:18=7:x
fractiofy
4/18=7/x
mutply both sides by x
4x/18=7
mulitply bothsides by 18
4x=126
divide both sides by 4
x=31.5

answer is 31.5 m^2
Answer Link

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