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3 years ago

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Mathematics

1 answer:

Vedmedyk [2.9K]3 years ago

8 0

Option C (-2, -3)

Vertical line:

There is negative numbers at the left and positive numbers at the right.

Horizontal lines:

There is negative numbers under the line and positive numbers over the line.

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A student takes a part-time job to earn for summer travel. The number of hours, , the student has to work is inversely proportio

Andrej [43]

Answer:

(a) $h = \frac{2400}{w}$

(b)300 Hours

(d)Reduced and halved.

(e) $w = \frac{2400}{h}$

Step-by-step explanation:

(a) The number of hours worked is inversely proportional to the wage.

This is written as:

$h \propto \frac{1}{w} \\\text{Introducing variation constant k}\\h = \frac{k}{w}\\$Since the money to be raised is constant, k = $ \$2400\\Therefore, h = \frac{2400}{w}$

(b)If the student earns $8 an hour

w=$8

$\text{Number of Hours required, h} = \frac{2400}{8} =300 Hours$

(c)When the wage per hour =$16

When w=$16

$\text{Number of Hours required, h} = \frac{2400}{16} =150 Hours$

The number of hours reduced and is in fact halved.

(d)

$\text{When the wage per hour =w}, h = \frac{2400}{w}\\\text{When the wage per hour =2w}, h = \frac{2400}{2w}=\frac{1}{2} X \frac{2400}{w} =\frac{h}{2}$

The effect of raising the wage from $w to $2w per hour is that the number of hours required to work is reduced and exactly halved.

(e)The wage per hour is inversely proportional to the number of hours.

In fact,

$\text{From h = }\frac{2400}{w}\\\text{Cross Multiplying}\\hw=2400\\\text{Dividing both sides by h}\\w = \frac{2400}{h}$

8 0

3 years ago

If I start at 327 how do I get to finish if I have to color in numbers divisible by six

9966 [12]

Try a calculator and doing some googling of numbers divisible by six. There's a great calculator site called calculator soup! ( Yes it's really called calculator soup )

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3 years ago

12) Amusement Parks A thrill ride at an amusement park carries riders 160 feet straight up and then releases them for a free fal

Sliva [168]

Answer:

sqrt(10)

Step-by-step explanation:

sqrt(160)/16

sqrt(16)sqrt(10)/sqrt(16)

4sqrt(10)/4

sqrt(10)

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