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3 years ago

If a person walks 1/2 mile in each 1/4 hour,compute the unit rate as the complex fraction 1/2÷1/4 mile per hour

Mathematics

2 answers:

eduard3 years ago

8 0

Keep change flip:
1 1 1
- X - = -
2 4 8

Naily [24]3 years ago

4 0

1\2x4/1=4/2=2 that is the answer

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What % could i make 2/5 of a hour? like 10% of a hour. like that.

yarga [219]

well, we can say that 1 hour is 100%, what is 2/5 hr off of it in percentage?

$\begin{array}{ccll} hour&\%\\ \cline{1-2} 1 & 100\\ \frac{2}{5}& x \end{array} \implies \cfrac{1}{~~ \frac{2}{5}~~}=\cfrac{100}{x}\implies \cfrac{5}{2}=\cfrac{100}{x} \\\\\\ 5x=200\implies x=\cfrac{200}{5}\implies x=40$

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2 years ago

Plz solve i need this done today

garik1379 [7]

D,A,B,C i think this is correct !

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3 years ago

You decide to bake a cake for your sister's birthday, but you discover you don't have enough eggs. Before you go to the store, y

zheka24 [161]

Answer:

I think it will c because I have some eggs at home

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3 years ago

How do i plot 3 points on a graph when all I am given is "x=4" ? and I need to find "x and y" for 3 points.

ipn [44]

Answer:

(4,-1) (4,0) (4,1)

Step-by-step explanation:

If you graph this, it will be a straight vertical line. No matter what y is, x will always be 4.

8 0

2 years ago

Total surface area of a cube is 1014cm^2. It's volume will be :

Karolina [17]

Answer:

Option A (2197 cm³)

Step-by-step explanation:

For a cube with length of each side "a" , it's

Total Surface Area = 6a²
Volume = a³

_____________________________________________

According to the question ,

Total Surface Area = 1014 cm²

Let the length of each side of cube be 'a'.

Using the formula ,

$6a^{2} =1014$

$=> a^{2} =\frac{1014}{6} = 169$

$=> a = \sqrt{169} = +13 \: or -13$

But length can't be negative . So , length of each side = 13 cm

∴ Volume of cube = 13³ = 2197 cm³

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3 years ago