.45 is just 45/100. divide both numbers by 5 to get 9/20.
Answer:
854
Step-by-step explanation:
There is no decimals.
80*x + 210 = 490 ;
80*x = 280 ;
x = 280÷80 ;
x = 3.50 ;
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Multiply sides by 4



Add sides x


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The correct answer is (( C )) .
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Answer:
yes
Step-by-step explanation:
12 + 3t = 72
Let t = 20
12 + 3*20 = 72
12 + 60 = 72
72 = 72
This is a true statement so t =20 is a solution