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anzhelika [568]
3 years ago
15

What is the length of each edge of a cube if its surface area is 486 square units

Mathematics
2 answers:
babymother [125]3 years ago
5 0

Answer:

18units

Step-by-step explanation:

deff fn [24]3 years ago
3 0

Answer: 9 units


Step-by-step explanation:


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A store owner buys a case of 144 pens for $28.80. He sells the pens for $0.40 each. The owner claims that they marked the pens u
stellarik [79]

Answer: $0.3

Step-by-step explanation:

Given

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\dfrac{28.80}{144}=\$0.2

owner sells the pen at $0.4 i.e. price marked up by

\Rightarrow \dfrac{0.4-0.2}{0.2}\times 100=100\%

So, the claim of the owner is incorrect

The actual increase in the price to get 50% markup

\Rightarrow 0.2\times (1+0.5)=\$0.3

6 0
3 years ago
Help please!! I need to figure out the are of the shape pls explain answer
Andrews [41]

Answer:

390 ft²

Step-by-step explanation:

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250+140= 390

4 0
1 year ago
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8.) 2x<12 pls help me
Roman55 [17]

Answer:

x < 6

Step-by-step explanation:

2x < 12

Divide both sides by 2;

x < 6

x is less than 6

3 0
3 years ago
Where are the parallelograms in this picture?
inysia [295]

Answer:

here the line A and H are parallel

7 0
3 years ago
What is greater 66mm or 6cm
LuckyWell [14K]
66mm=6cm
So that means that any 66mm is 6cm point 6mm ===> 66cmm=6.6cm
Thus, 6cm is not greater but it is equal to 66mm
It's like you looking at 1yd=3feet  which also means that 3feet=1yd.
7 0
3 years ago
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