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Vladimir [108]
3 years ago
11

Please help me, solve for y 2x-y=5

Mathematics
1 answer:
Novosadov [1.4K]3 years ago
3 0
<span><span><span>2x</span>−y</span>=5

</span>Add -2x to both sides.

<span><span><span><span>2x</span>−y</span>+<span>−<span>2x</span></span></span>=<span>5+<span>−<span>2x

</span></span></span></span><span><span>−y</span>=<span><span>−<span>2x</span></span>+5

</span></span>Divide both sides by -1.<span><span><span><span><span>
</span></span></span></span></span><span><span>
\frac{-y}{-1} =  \frac{-2x+5}{-1}
‌</span></span><span>y=<span><span>2x</span>−5

</span></span>Answer:

<span>y=<span><span>2x</span>−<span>5</span></span></span>
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Number 2 is the problem i need help with
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Answer:

2a) $180

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Step-by-step explanation:

2a) Basically Samuel works for 6 hours a day and earns 7.50 per hour, so you have to do 7.50 x 6 to see how much he earns per day (which in this case is $45). You then have to multiply $45 to 4 since he earns $45 per day and works 4 days per week (which is $180).

2b) After finding out how much he earns per week ($180 from the previous question), you then have to multiply $180 by 8 as $180 is the amount he earns per week and since he works for 8 weeks you have to multiply $180 by 8 (the answer is then $1440).

sorry if I'm not making sense, i tried :) good luck!

8 0
3 years ago
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umka21 [38]

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A 100-meter-long christmas train needs 30 seconds to cross a 400-meter-long bridge. assuming the train goes at a steady speed, h
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