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3 years ago

Evaluate 0.53n + 5 when n= 3 and when n= -3

Mathematics

1 answer:

vampirchik [111]3 years ago

4 0

Answer:

6.59 and 3.41

Step-by-step explanation:

To evaluate, substitute n for each of the given values.

So when n= 3:

0.53n + 5 = 1.59 + 5 = 6.59

And when n = -3

0.53 n + 5 = -1.59+5=3.41

Hope this helps

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3 years ago

Please help 100 points and brainlest for all the answers

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Answer:

See explanation

Step-by-step explanation:

Q1. The graph of given data is attached.

The relationship is directly proportional as the line connecting all points is straight line passing through the origin.

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Therefore, the equation that represents this line is

$y=16x$

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Therefore, the equation of the line is

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When $x=14,$ then $y=12.5\cdot 14=175$

Hence, the cost of 14 tickets is $175

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if x = 500 and y = 40, then

for x = 100, y is $40\div 5=8$

and for x = 700, y must be $7\cdot 8=56$ not 50.

Hence, this relationship does not show the direct proportionality between x and y.

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The constant of proportionality is $k=1.75$

The equation of proportionality is $y=1.75x$

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This means for $28 you could buy 16 ice cream scoops.

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This means you could buy 9 tickets for $274.50

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$y=kx$

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3 years ago

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