The answer is D. To solve 3/5 ÷ 4/7 you would change it to 3/5 × 7/4.
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Answer:
x=4.5
y=-2.5
Step-by-step explanation:
Multiply 2x-4y=19 by 3
Multiply 3x+5y=1 by 2
Solve simultaneously
Answer:
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Step-by-step explanation:
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Use excel to draw the graph and add the trend, formula