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Equation problem (primary oh) on three ah Equation problem (primary oh) on three ah ① Master Wang processes 460 auto parts, and there are 160 unprocessed parts after 6 days. How many auto parts does Master Wang process every day? ② The two ships, a and B, set out from the same Wharf in opposite directions at the same time, sailing for 5 hours, with a distance of 225 km. How many kilometers does ship a travel per hour and ship B travel per hour? ③ It costs 0.9 yuan more to buy 3 pencils than 5 ballpoint pens. The price of each ballpoint pen is 0.6 yuan. How much is each pencil? There are only three questions. Read the questions carefully. Don't lose the decimal point. Well, I hope you can use the equation for every question~
1、
Set an average of X pieces per day
6X+160=460
6X=460-160
6X=300
X=50
2. Set boat B to travel x kilometers per hour
(19.5+x)*5=225
19.5+x=45
x=25.5
3. Suppose each pencil costs X Yuan
3X-5*0.6=0.9
3X=3.9
X=1.3
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