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vodomira [7]
3 years ago
10

What do you notice about the density of the sinking objects?

Chemistry
2 answers:
tino4ka555 [31]3 years ago
5 0

Answer:

if its less Dense than water it will float, if it's more Dense, than water it  will sink. if an object weighs more than the same amount of water then it will sink but if it weighs less it will float

Explanation:

matrenka [14]3 years ago
4 0
They are higher than water
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exis [7]

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6 0
2 years ago
Denise owns a car that runs on a mixture of gasoline and ethanol. She can buy fuels that have 85% ethanol or 25% ethanol. How mu
Hunter-Best [27]
<span>85% ethanol | 25% ethanol | 50% ethanol
x | y | 20 gal

use x and y because you don;t know how much she needs.

0.85x | 0.25y | 20(0.5)

85% is 85/100 or 0.85, and you need that much of x, same goes for the 25% and 50% mixtures so now you can make up 2 equations
1) x + y = 20 2) 0.85x + 0.25y= 10 (you get 10 when you multiply 20 by 0.5) now you can solve for x or y using substitution.
first rewrite 1) in terms of x or y: x+ y= 20 ----> y= 20 - x now you can substitute 20- x for y in the second equation.. 0.85x + 0.25y= 10 0.85x + 0.25(20-x)= 10 distribute here..(0.25 * 20 and 0.25 * (-x) ) 0.85x + 5 - 0.25x = 10 combine like terms 0.6x +5 = 10 move the 5 over to the other side 0.6x= 10 -5 0.6x = 5 divide both sides by 0.6 x= 25/3 or 8.3 now you know the amount of x so you can substitue this back into the first equation to find y. 0.85x + 0.25y= 10 0.85(25/3) +0.25y= 10 85/12 + 0.25y= 10 0.25y = 10- 85/12 0.25y= 35/12 y= 35/3 or 11.6 you can check by putting these values into the euations: 1) x+ y= 20 25/3 + 35/3 =20 20= 20 good so far 2) 0.85x + 0.25y= 10 0.85(25/3) + 0.25(35/3)=10 10 = 10

so our values for x and y work
x= 25/3 and y= 35/3</span>
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2 years ago
A b c d e f g h i j k l m n o p q r s t u v w x y z
enyata [817]
It’s B. Substitution hope this helps
6 0
2 years ago
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What is atoms in your own words
san4es73 [151]

Atom is the smallest indivisible particle of matter.

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3 years ago
What is the density of a liquid if it has a mass of 12.9g ?
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Find it on google i’m pretty sure i saw it somewhere so sorry this doesn’t help
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