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Ipatiy [6.2K]
3 years ago
11

it cost 3.99 for 25 fl. oz or detergent or 6.99 for 90 fl. oz of detergent which is a better buy? and can you work it out please

.
Mathematics
1 answer:
Ierofanga [76]3 years ago
7 0
The 90 fl. oz is a better buy 
3.99/25=0.15
6.99/90=0.07
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Please solve this and give answer
Nikolay [14]

Answer:

Step-by-step explanation:

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Find the value t if the value of 3x + 5x – 2t equals to 8, when x = -1 .
Evgesh-ka [11]

Step-by-step explanation:

3x + 5x - 2t = 8

3 . (-1) + 5 . (-1) - 2t = 8

-3 - 5 - 2t = 8

-8 - 2t = 8

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1/6÷6÷6= please help me with this :D
slava [35]

Answer:

1 / 216

Step-by-step explanation:

Remember, when you divide fractions you have to multiply by the reciprocal

1/6 ÷ 6/1 ÷ 6/1

1st step:  1/6 ÷ 6/1  =  1/6 · 1/6  =   1/36

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3 years ago
Find the absolute of 3.7
Slav-nsk [51]

Answer:

its just |3.7|

Step-by-step explanation:

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3 years ago
I think I have the correct answers but will anyone try to solve these questions so I can see if we got the same answer.
Andre45 [30]

Because you seem to have an understanding of the material, I will write my math, but no explanations for my work. Comment on this answer for an explanation, or if I did something wrong.

1. Find the length of the South side of the field.

(5x+2)+(x^2-9)+(x^2-7x+12)\\5x+2+x^2-9+x^2-7x+12\\2x^2+5x+2-9-7x+12\\2x^2-2x+2-9+12\\2x^2-2x+5

2.Find the perimeter of the pumpkin field.

2(5x+2)+2(5x-2)\\(5x+2)+(5x+2)+(5x-2)+(5x-2)\\20x+4-4\\20x

3. Find the perimeter of the whole field.

2(4x+5x-2)+2(5x+2+x^2-9+x^2-7x+12)\\2(9x-2)+2(2x^2-2x-5)\\18x-4+4x^2-4x+10\\4x^2+14x+6

4. If x=30ft, what is the total perimeter?

P=4x^2+14x+6\\P=4(30)^2+14(30)+6\\P=4(900)+420+6\\P=1026ft

Random Tangent:

If you want to involve y in finding these answers for whatever reason, your math is going to get messy. Here's what I tried before I realized you could multiply each side by 2 to get the total perimeter:

xy+1+x+6=4x+5x-2\\xy-8x=-9\\x(y-8)=-9\\y-8=-\frac{9}{x}\\y=-\frac{9}{x}+8

Now the other side. This one's even worse.

xy-1+6x+x=5x+2+x^2-9+x^2-7x+12\\xy+9x-2x^2=5\\x(y+9+2x)=5\\2x+9+y=\frac{5}{x}\\y=\frac{5}{x}-2x-9

At this point, was realizing I wasn't going about the problem correctly, but did one last try by setting y=y. At this point in the equation, I simply had to stop, both due to complexity and technological problems.

\frac{5}{x}-2x-9=-\frac{9}{x}+8\\\frac{14}{x}=2x+17\\ 14=2x^2+17x\\0=2x^2+17x-13\\

I could possibly continue to solve, but I don't see a point. It was clear that this was NOT the right path to take finding the perimeter. It was here I realized that I could just multiply the two sides without y in them by 2 and--without as much difficulty--reach the correct answer.

6 0
3 years ago
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