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Lostsunrise [7]

3 years ago

11

it will cost $285 to charter a bus for a class trip. the class treasurer says that there is $60 in the class treasury. the 20 st

udents going on the trip agree to make up the difference. write and solve an equation to find how much each students will pay

2 answers:

dalvyx [7]3 years ago

4 0

(285-60)/20
Which is $11.25 per child

myrzilka [38]3 years ago

3 0

(285-60) divided by 20 =11.25

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Y is directly proportional to the square of x.

RUDIKE [14]

Answer:

The value of y is 847 for x=11

Step-by-step explanation:

It is given that y is directly proportional to the square of x

This can be written mathematically as:

$y \propto x^2$

Removing the proportionality symbol introduces a proportionality constant in the equation which is denoted by k

$y = kx^2$

Given that "When x is 5, y is 175"

$175 = k (5)^2\\175 = k*25\\k = \frac{175}{25}\\k = 7$

Putting the value of k

$y = 7x^2$

Now putting x = 11

$y = 7(11)^2\\y = 7 * 121\\y = 847$

Hence,

The value of y is 847 for x=11

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2 years ago

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Answer:

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Step-by-step explanation:

24=8×3

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Answer:

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2 years ago

a 6-meter-long board is cut in sections that each measure 1/3 meter long. how many sections are created from thw 6 meter long bo

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3 years ago

A protected wilderness area in the shape of a rectangle is 3 kilometers long and 3.2 kilometers wide. The forest is to be surrou

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Step-by-step explanation:

Area of a rectangular =length*breadth

= 3.2 km * 3.0 km = 9.6km(squared)

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Hence, cost of a hiking trail to surround the rectangular shaped wilderness = $11 * 6 = $66

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3 years ago