A student scores 73 out of 100 on a test. If the maximum score on the next test is also 100 points, what score does the student need to maintain at least an average of 78?

Question

baldymcgee6 · Answer

(73 +x)/2 = 78

baldymcgee6 · Answer

Solve for x :)

anonymous · Answer

$$\frac{ 73+x }{ 2} do you mean that?$$

baldymcgee6 · Answer

$$\frac{ 73+x }{ 2 }= 78$$ Yes, they are equivalent.

anonymous · Answer

$$\frac{ 73+x }{ 2 }=78$$$$73x+2=78\times2$$$$73+x=156$$$$x=83$$

anonymous · Answer

@EchaSetiaWijaya ahhh! that makes sense to me. i didn't understand it written in a fraction but I understand 73x + 2 = 78 x 2.

anonymous · Answer

@baldymcgee6 @EchaSetiaWijaya thanks for your help!

anonymous · Answer

you're welcome

anonymous · Answer

sorry, for the second step this is the right on i mean 73 + x = 78 * 2