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Vilka [71]
2 years ago
6

3. Mr. Jones sold two pipes at $1.20 each. Based on the cost, his profit one was 20% and his loss on the other was 20%. On the s

ale of the pipes, he:
(a) broke even, (b) lost 4 cents, (c) gained 4 cents, (d) lost 10 cents, (e) gained 10 cents
Mathematics
1 answer:
Umnica [9.8K]2 years ago
7 0
Solution:

<span>20 % profit on $ 1.20 </span>

= $ 20/100 × 1.20

= $ 0.20 × 1.20

<span>= $ 0.24 </span>

<span>Similarly, 20 % loss on $ 1.20 </span>

= $ 20/100 × 1.20

= $ 0.20 × 1.20

= $ 0.24

Therefore, in one pipe his profit is $ 0.24 and in the other pipe his loss is $ 0.24.

Since both profit and loss amount is same so, it’s broke even.

<span>Answer: (a)</span>
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Answer:

Example system with no solution

We're asked to find the number of solutions to this system of equations:

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y

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Without graphing these equations, we can observe that they both have a slope of -3−3minus, 3. This means that the lines must be parallel. And since the yyy-intercepts are different, we know the lines are not on top of each other.

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Example system with infinite solutions

We're asked to find the number of solutions to this system of equations:

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Interestingly, if we multiply the second equation by -2−2minus, 2, we get the first equation:

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Step-by-step explanation:

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