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navik [9.2K]
3 years ago
15

-0.5(x + 0.3) – 0.2x = 4.1

Mathematics
1 answer:
lys-0071 [83]3 years ago
3 0

Answer:

x=-8

Step-by-step explanation:

I always change the decimals into whole numbers by multiplying them by 10.  If you do this, it is much easier to solve.  All you do is multiply every term by 10.

the equation changes to

-5(x+3)-2x=41

-5x-15-2x=41

combine like terms

-7x-15=41

bring the 15 over to the 41

-7x=56

divide everything by 7

-x=8

change x to a positive

x=-8

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Therefore, we can see that car travels 34 miles in one gallon of gas.

Now we can use this information to find out how many gallons of gas does this car need to travel 578 miles.

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Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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goblinko [34]

Answer:

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Step-by-step explanation:

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otez555 [7]
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8 0
3 years ago
You are selling concessions at a local swim meet. Hot dogs are being sold for $1.00 and soda is being sold for $0.50. At the end
melomori [17]

Answer:

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Step-by-step explanation:

a) standard form equation above

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5 0
3 years ago
(1/(x-1))-(3/(x^2+2x-3))<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7Bx%20-%201%7D%20%20-%20%20%5Cfrac%7B3%7D%7Bx%20
ycow [4]

\dfrac{1}{x-1}-\dfrac{3}{x^2+2x-3} \\\dfrac{1}{x-1}-\dfrac{3}{(x+3)(x-1)} \\\dfrac{1\cdot(x+3)-3}{(x+3)(x-1)} \\\dfrac{x+3-3}{(x+3)(x-1)} \\\dfrac{x}{(x+3)(x-1)}

Hope this helps.

r3t40

4 0
3 years ago
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