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vitfil [10]
3 years ago
13

jack has a collection of new nickels and quarters. he has a total of 50 coins worth $10.30. how many of each coin does he have?

Mathematics
1 answer:
gayaneshka [121]3 years ago
5 0
20  ejndkjdnkjewbdgfyrrrrrrrrrrrrqwofeyuhjw
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Using common denominator, what is an equivalent fraction for 1/3?
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Answer: An example of an equivalent fraction for 1/3 is 3/9.

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if something starts up costing 500, and then is marked down by 25% on rack of three separate occasions, what is the final price?
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Find the slope between two points : ( - 5,5 ) and ( 3, - 5 )
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(-5,5)(3,-5)
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0.7x+6=0.3(4x+6)−2x
Gelneren [198K]

Answer: x=-2.8

Step-by-step explanation:

Given the following equation:

0.7x+6=0.3(4x+6)-2x

You can follow these steps in order to solve for "x" and find its value:

1. Apply Distributive property on the right side of the equation:

0.7x+6=0.3(4x+6)-2x\\\\0.7x+6=1.2x+1.8-2x

2. Subract 0.7x from both sides and add the like terms:

0.7x+6-(0.7x)=1.2x+1.8-2x-(0.7x)\\\\6=-1.5x+1.8

3. Subtract 1.8 from both sides:

6-(1.8)=-1.5x+1.8-(1.8)\\\\4.2=-1.5x

4. Finally, divide both side of the equation by -1.5:

\frac{4.2}{-1.5}=\frac{-1.5x}{-1.5}\\\\x=-2.8

8 0
4 years ago
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