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emmainna [20.7K]
3 years ago
15

Please help me please please help please

Mathematics
1 answer:
poizon [28]3 years ago
6 0

Answer:

its 2 blurry so i cant help take a better pic and i should be able to help you out

Step-by-step explanation:

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15 points. Attached the question<br>​
Vanyuwa [196]

Answer:

3

Step-by-step explanation:

(2x +1)/8 - (x-1)/3 = 5/24

multiple the 2x+1/8 by 3 and multiple (x-1)/3 by 8 then add them up

6x+3/24 - 8x-8/24 ➡ 6x-8x+11/24 = 5/24

➡ -2x+11 = 5

➡ -2x = 5-11

➡ x = 3

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3 years ago
The park i 45 feet long . How long is park yard ? (1yard=3feet)
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135 feet is the length of the yard
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2 years ago
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Simplify: −(4)2(3)3 (-6)2(-2)4
charle [14.2K]
It does not matter in which order I multiply. I will simply multiply negatives, then positives.
-(4)2(3)3(-6)2(-2)4
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6 0
3 years ago
What is the opposite of the opposite of -3/8
Svetllana [295]

answer: c. -3/8

Explanation: do it step by step so opposite of -3/8 is 3/8 the opposite of 3 /8 is -3/8

it sounds complicated but it is actually easy

4 0
3 years ago
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At the end of the ride up a steep hill, Ken was at an elevation of 1600 meters above where he started. He figured out that he an
Lostsunrise [7]

Answer:


Step-by-step explanation:

first place)

in first place you must Know by definition that a joule is defined as the amount of work done by a constant force in a meter of length

and it is 1 J = 1 N ×m = 1 kg ×m/s² ×m= 1 Kg×m²/s²

now you can calculate the time done by ken and his bicycle

1000000 = 52kg×(1600)²/s² = 1000000= 133120000/s²⇒1000000s² = 133120000⇒s²= 133120000/1000000⇒ s² =133,12⇒s =√133,12 = 11,5 ≅12

12 s is the time that ken with his bicycle ride up to the mountain

second )

having the time you can calculate the work done by ken individually

52kg×(1600)²/(12)² =133120000/ (12)² = 924444,4 and this is the  work done by  ken

Now you must substract  the work done by ken and his bicycle from  the work  done by ken individually in order to know  the work of the bicycle

1000000 joules -924444,4 joules  = 75555,6 joules

Having this amount, you can calculate the mass of the bicycle

and it is 1 J = 1 N ×m = 1 kg ×m/s² ×m= 1 Kg×m²/s²

75555,6 = kg *(1600) ²/(12)²⇒ 75555,6 =17777,7kg⇒ Kg = 75555,6/17777,7  = 4,25 kg

the mass of the  ken's bicycle is 4,25 kg


3 0
3 years ago
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