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a_sh-v [17]
3 years ago
9

Printed Pages in Color Time (min), x 2 6 8 18 Number of pages, y 3 9 12 27 What is the constant of variation?

Mathematics
1 answer:
aksik [14]3 years ago
8 0

Answer:

3/2

Step-by-step explanation:

formula k = y/x

comes from

y = kx

k = constant of variation

when y = 3 , x = 2

k = 3/2

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What is the slope of a line perpendicular to a line with the equation y = 5x - 2 ?
dimulka [17.4K]

Answer:

-1/5

Step-by-step explanation:

Perpendicular lines are lines which have a specific relationship. The slopes of the two lines are negative reciprocals of each other. We can find the slope easily in slope-intercept form, y=mx+b.

Since our equation is already in slope intercept form then y=5x-2 has a slope of 5.

The slope of the perpendicular line will be -1/5. This is the negative reciprocal of 5.

8 0
4 years ago
6. Pamel bought an electric drill at 85% of the regular price. She paid $276,25 for
Katen [24]

Answer:

£325

Step-by-step explanation:

She paid £276.25 which is 85%

Divide 276.25 by 85 which is 3.25

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Multiply 3.25 by 100 to get the full Price

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3 years ago
What number is 2/3 of 15
ch4aika [34]
Answer: 10
Explanation: 2/3 of 15 is 10
5 0
3 years ago
Read 2 more answers
Jennifer is shopping with her mom. They pay 2 dollars per pound for tomatoes. What is the constant of proportionality in the sit
pantera1 [17]
2x=y where 2 is dollars per tomatoe, x is amount of pounds of tomatoes, and y is amount of money spent in total. say you got 3 pounds of tomatoes; the equation would be 2(3)=y. y=6. Hope I helped! 
5 0
3 years ago
Alexandra’s backpack weights 7 5/8 pounds. What is the weight of her backpack expressed as a decimal?
Alex777 [14]

Answer: 7.625 pounds.


Step-by-step explanation:

Given: The weight of  Alexandra's backpack = 7\frac{5}{8}\ poundse the given weight is in mixed fraction.

To convert it into decimal ,first we need to convert it into improper fraction.

Thus, 7\frac{5}{8}=\frac{7\times8+5}{8}=\frac{61}{8}

Now, convert the improper fraction into decimal, by dividing numerator by denominator, we get

7\frac{5}{8}=7.625

Hence, the weight of her backpack in decimal = 7.625 pounds.

8 0
3 years ago
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