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strojnjashka [21]
3 years ago
11

1. According to the graph, how many hours a day does the average teenager spend at school.

Mathematics
1 answer:
shutvik [7]3 years ago
5 0

There are 24 hours in a day. 25% is 25 / 100

% can always be replaced by divide by 100.

25/100 * 24 = 25*24/100 = 600 / 100 = 6

Therefore someone spends 6 hours a day in school.

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Serena has attached a 10 inch ribbon to the corners of a frame to hang it on the wall. The frame 9 inches wide. How far above th
kherson [118]

Answer: The hook would be 2.2 inches (approximately) above the top of the frame

Step-by-step explanation: Please refer to the picture attached for further details.

The top of the picture frame has been given as 9 inches and a 10 inch ribbon has been attached in order to hang it on a wall. The ribbon at the point of being hung up would be divided into 5 inches on either side (as shown in the picture). The line from the tip/hook down to the frame would divide the length of the frame into two equal lengths, that is 4.5 inches on either side of the hook. This would effectively give us two similar right angled triangles with sides 5 inches, 4.5 inches and a third side yet unknown. That third side is the distance from the hook to the top of the frame. The distance is calculated by using the Pythagoras theorem which states as follows;

AC^2 = AB^2 + BC^2

Where AC is the hypotenuse (longest side) and AB and BC are the other two sides

5^2 = 4.5^2 + BC^2

25 = 20.25 + BC^2

Subtract 20.25 from both sides of the equation

4.75 = BC^2

Add the square root sign to both sides of the equation

2.1794 = BC

Rounded up to the nearest tenth, the distance from the hook to the top of the frame will be 2.2 inches

4 0
2 years ago
Need help solving this.
Leona [35]
All of them because they all grow stuff that farmers grow
8 0
3 years ago
The girl scouts are planning to sell chocolate cookies at $10.50 and lollipops at $2.50 each. They were able to collect $350 in
12345 [234]

Answer: 389

Step-by-step explanation: well if there is lollipops for $2.50 each and they sold thrice as many lollipops then they have sold 7.5 of the lollipops and if you sell thrice of the cookies then that will be 31.5 and if you add 7.5 and 31.5 that will be 39 so the real answer is 389.

5 0
3 years ago
6r + 7 = 13 + 7r what is r
kumpel [21]

Answer:

6r+7=13+7r

6r+7=7r+13

6r+7−7r=7r+13−7r

−r+7=13

−r+7−7=13−7

−r=6

\frac{-r}{-1} = \frac{6}{-1}

r=−6

Step-by-step explanation:

:) This is the answer

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3 years ago
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I NOW HAVE 690 PTS ALSO PLEASE HELP WITH MY MOST RECENT QUESTION
myrzilka [38]
Okay I’ll try!!!!! Let me go check it out
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2 years ago
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