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Katelyn has to work 40 hours this week. So far she has worked for eight hours each day for three days and for seven hours on another day. How many more hours does she have to work this week?

Sagot :

[tex]3\cdot 8 + 7 + x=40 \\ \\24+7+x=40 \\ \\31+x=40\\\\x=40-31=9\\ \\Answer: \ even \ nine \ hours \ she \ as \ to \ work \ this \ week[/tex]


8 x 3 = 24
24 + 7 = 31

40 - 31 = 9

Katelyn has to work for 9 more hours.