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vladimir2022 [97]
3 years ago
9

Enter three different expressions that are equivalent to, but not exactly the same as 1/4 + 5/4​

Mathematics
1 answer:
Mnenie [13.5K]3 years ago
4 0

1.25 + .25    84/48 - 12/48    18/12 ÷ 2/2

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What's the error? Jerry says that a cube with edges that measure 10 cm has a volume that is twice as much as a cube with sides t
disa [49]
The quick way to dispute something like this is to simply do the calculation and then create a ratio. 

Cube One (Large Cube)
The formula for a cube is V = e^3 
e = the measurement of an edge. In this case.
e = 10 cm
V = e^3
V = 10^3 = 10*10*10
V = 1000 cm^3

Cube 2 (Small Cube)
V = e^3
e = 5 cm
V = 5*5*5
V = 125 cm^3

Ratio
Large Cube / Small Cube = 1000 / 125 = 8/1.

The difference in size is 8 to 1 not 2 to 1.

Explanation
He's right if he sticks to one side. The ratio of one side of the large cube to the small one is 2 to 1. But once you put that into the formula for volume, three sides are multiplied together and that 2 shows up everytime you multiply the sides together. 

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3 years ago
F(x) = x2 + 3x - 7
Serga [27]

Answer:

{-7, 3, 33}

Step-by-step explanation:

3 0
3 years ago
Y = -27x + 577, where x represents the number of weeks and y represents the amount of money left in her account. After how many
Illusion [34]
To solve this problem, plugin 145 where the y is located and then solve for x
y = -27x +577
145 = -27x +577
145 -577 = -27x
-432 = -27x
-432/-27 = -27x/-27
16 = x
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After 16 weeks she will have $145 dollars in her account.

7 0
3 years ago
Movie critics claim that 68% of adults and 79% of teenagers would recommend seeing the newest action movie.
tangare [24]

Answer:

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Step-by-step explanation:

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3 0
2 years ago
A rectangular garden has a length that is six feet more than twice its width. It takes 120 feet of fencing to completely enclose
vichka [17]

Step-by-step explanation:

let width = w then length, l = 2w + 6

2w + 2(2w + 6) = 120

a rectangular garden has two pairs of equal parallel sides 2w and 2l. here we multiply 2 by the width and 2 by the length which is given as 6 more than twice the width or 2w + 6. we then add these sides to get 120

2w + 2(2w + 6) = 120 \\ 2w + 4w + 12 = 120 \\ 6w + 12 = 120 \\ 6w + 12 - 12 = 120 - 12 \\ 6w = 108 \\  \frac{6w}{6}  =  \frac{108}{6 }  \\ w = 18

check

width = w  = 18\\ length \: l = 2w + 6  = 2(18) + 6 = 42\\ w + w + l + l = 120\\ 2w  + 2l =  \\ 2(18) + 2(42) =  \\ 36 + 84 = 120

7 0
2 years ago
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