几道英文数学题请教 急请帮我写出公式 1. a spacecraft countdown is at -8second.in how many seconds will the spacecraft be 15second into its flight.2. the melvilles sell records at a flea market every saturday.on 4 saturday in june,the
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![几道英文数学题请教 急请帮我写出公式 1. a spacecraft countdown is at -8second.in how many seconds will the spacecraft be 15second into its flight.2. the melvilles sell records at a flea market every saturday.on 4 saturday in june,the](/uploads/image/z/1940371-43-1.jpg?t=%E5%87%A0%E9%81%93%E8%8B%B1%E6%96%87%E6%95%B0%E5%AD%A6%E9%A2%98%E8%AF%B7%E6%95%99++%E6%80%A5%E8%AF%B7%E5%B8%AE%E6%88%91%E5%86%99%E5%87%BA%E5%85%AC%E5%BC%8F+1.+a+spacecraft+countdown+is+at+-8second.in+how+many+seconds+will+the+spacecraft+be+15second+into+its+flight.2.+the+melvilles+sell+records+at+a+flea+market+every+saturday.on+4+saturday+in+june%2Cthe)
几道英文数学题请教 急请帮我写出公式 1. a spacecraft countdown is at -8second.in how many seconds will the spacecraft be 15second into its flight.2. the melvilles sell records at a flea market every saturday.on 4 saturday in june,the
几道英文数学题请教 急
请帮我写出公式
1. a spacecraft countdown is at -8second.in how many seconds will the spacecraft be 15second into its flight.
2. the melvilles sell records at a flea market every saturday.on 4 saturday in june,they had a profit of$30,lost$20,lost$40,and had a profit of $60.how much was their profit or loss in june
几道英文数学题请教 急请帮我写出公式 1. a spacecraft countdown is at -8second.in how many seconds will the spacecraft be 15second into its flight.2. the melvilles sell records at a flea market every saturday.on 4 saturday in june,the
1.15-(-8)=23s
2.30-20-40+60=30
So their profit in June is $30
1. 15-(-8)=23s
2. 30-20-40+60=30