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Nitella [24]
3 years ago
8

a segment with endpoints A (4,2) and C (1,5) is partitioned by a point B such that AB and BC from a 1:3 ratio. find B.

Mathematics
1 answer:
vfiekz [6]3 years ago
8 0

Answer:

its c or 3.25,2.75

Step-by-step explanation:

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High grade steel consists of 85% iron and 15% magnese. Low grade steel consists of 67% iron and 33% mag ese. NASA orders 500 ton
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Answer:

361\dfrac{1}{9} tons of high steel and 138\dfrac{8}{9} tons of low steel

Step-by-step explanation:

Let x be the number of tons of high grade steel and y be the number of tons ow low grade steel needed.

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From the first equation,

x=500-y

Substitute it into the second equation:

0.85(500-y)+0.67y=400\\ \\425-0.85y+0.67y=400\\ \\-0.18y=-25\\ \\y=\dfrac{2,500}{18}=138\dfrac{8}{9}\ tons\\ \\x=361\dfrac{1}{9}\ tons

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