Box A contains one 100 g block, one 20 g block and three 5 g blocks. Box B contains one 50 g block and three 10 g blocks. Jasmine

Question

Box A contains one 100 g block, one 20 g block and three 5 g blocks. Box B contains one 50 g block and three 10 g blocks. Jasmine moves some of the blocks from Box A to Box B and some of the blocks from Box B to Box A. After these moves, Box A contains 65 g less than it originally did and Box B contains 65 g more. What is the fewest number of blocks that Jasmine could have moved from Box A to Box B?

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Ngọc Diệp 4 weeks 2022-12-21T17:36:55+00:00 1 Answer 0 views 0

Answer ( 1 )

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    2022-12-21T17:38:19+00:00
    Answer: 2 boxes
    Step-by-step explanation:
    A=Box A. a=A-65. B=Box B. b=B+65
    A=100+20+5
    A=125
    A-65=125-65
    a=60
    B=50+10+10+10
    B=80
    B+65=80+65
    b=145
    b=A+20
    a=B-20
    b=100+20+5+10+10 ==> Change in +2 boxes
    a=50+10 ==> Change in -2 boxes

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )