Question

PLEASE GIVE ME AN ANSWER QUICKLY! Hiroshi spends 30 minutes on history homework , 60 minutes on English homework, and x minutes on math homework. One fourth of his total homework time is spent on math. Which equation can be used to find the amount of time Hiroshi spends on his math homework?

A. 1/4 (x+30+60)=x

B. 1/4 (x)=x(30+60)

C. 1/4x(30+60)=x

D. 1/4(x)=(30+60)

Answer 1

A

Explanation:

• He spends:
• 30 mins on History
• 60 mins on English
• x mins on math
• so the total time he spends is
  `(TotalTime)minutes=(30+60+x)minutes`
• one fourth of this is his math time, since x is math time, then we have
  `(1)/(4)(TotalTime)minutes=(x)minutes`
• But we know what totaltime in minutes is so
  `(1)/(4)(30+60+x)minutes=(x)minutes`
• or simply:
  `(1)/(4)(30+60+x)=x`