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Romashka-Z-Leto [24]
3 years ago
6

_2. You have a part-time job 4 days per week, 5 hours per day. How many hours will you work in two weeks?

Mathematics
1 answer:
marta [7]3 years ago
6 0

Answer:

C) 40

Step-by-step explanation:

For every one day your work is 5 hours.

1 day = 5 hours

Set up a proportion so it would be:

\frac{1 day}{5 hours} = \frac{4 days}{x hours}

4 days x 5 hours = 20 hours/week

So now you know you know you work 20 hours/week, then multiply by 2 since they're asking how many hours will you work in two weeks:

20 hours x 2 weeks = 40 hours in two weeks

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Tommy has a screw whose length is 4 cm and its thread length is 16 cm. What is the mechanical advantage of the screw?
Rus_ich [418]

Answer:

a screw is a simple machine that works as a modified inclined plane. You can think of the thread of the screw as an inclined plane wrapped around the shaft of the screw. The slope of the screw is the distance for one complete rotation while the height of the inclined plane is the distance between the threads, known as pitch. The relationship between the pitch and circumference of the screw gives the mechanical advantage.

7 0
2 years ago
Heeeeeeelp please ;-;
max2010maxim [7]

t value lies between (2,3) so, answer is option d

7 0
3 years ago
What is the slope of the graph of 14x + 7y = –9? A. 1/2 B. -1/2 C. 2 D. -2
Debora [2.8K]
First move the 14x over to get 7y=-14x-9 then divide by 7 and you get y= -2x-9/7. the slope is the value next to the x in y=mx+b form so the slope is -2
7 0
4 years ago
Please help me find out if this is increasing or decreasing !!!<br> please explain if you can!
Vikentia [17]

Answer:

Decreasing

Step-by-step explanation:

If I started at the y point and follow the graph line. Then you will see that I will be going down the graph.

Hope this helped

4 0
3 years ago
2. In the ratio of 3:2:2, three brothers invested a total of 249,000 to open a store. Find each
GaryK [48]

Answer:

$106,714.29

$71,142.86

$71,142.86

Step-by-step explanation:

There's a total of 7 pieces that they invested (3 + 2 + 2 = 7) so you can do 249,000 / 7 to find what each piece was worth.

249000/7 = about 35571.43

(you always have to round money to 2 decimal places)

Then the amount each brother spent would be:

3 * 35571.43 = 106714.29

2 * 35571.43 = 71142.86

2 * 35571.43 = 71142.86

8 0
3 years ago
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