1.15-(-8)=23s
2.30-20-40+60=30
So their profit in June is $30
幾道英文數(shù)學(xué)題請(qǐng)教急
幾道英文數(shù)學(xué)題請(qǐng)教急
請(qǐng)幫我寫出公式
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
請(qǐng)幫我寫出公式
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
英語(yǔ)人氣：212 ℃時(shí)間：2020-05-25 14:57:31
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