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barxatty [35]
2 years ago
14

Solve kx + 10 = 7 for x.​

Mathematics
1 answer:
Vlad1618 [11]2 years ago
6 0

Answer: x=\frac{-3}{k}

Step-by-step explanation:

To solve for x, you need to get x alone. In this problem, k is a constant.

kx=-3

x=\frac{-3}{k}

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Which is the better buy, 7 pounds for $8.47 or 9 pounds for $11.07?
wel
Let us take the case of 7 pounds for $8.47 first.
7 pounds of a product costs = 8.47 dollars
Then
1 pound of the same product will cost = (8.47/7) dollars
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Now let us take the case of 9 pounds for $11.07
9 pounds of a product costs = 11.07 dollars
Then
1 pound of the same product will cost = (11.07/9) pounds
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So from the above deductions we can see that 9 pounds for $11.07 is a better buy than 7 pounds for $8.47. I hope the procedure is clear enough for you to understand. In future you can use this method for solving similar problems.
7 0
3 years ago
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yanalaym [24]
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What percent of $90 = $45
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A train leaves Westchester at 6:30. What time should it arrive at Middlewich
Sholpan [36]

Answer:

a). 6:51

b). 6:30 am

c). 34 minutes

Step-by-step explanation:

a). Train leaves Westchester at 6:30.

   From the arrival - departure table in column (2),

   Arrival time of the train at middlewich = 6:51

b). Kate has to reach Southam before 9:00 am

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c). Duration of journey from Westchester to Eastwick = 06:34 - 06:00

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8 0
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