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Darya [45]
3 years ago
13

Four students estimated the width of the door to their classroom. Who made the best estimate?

Mathematics
1 answer:
VikaD [51]3 years ago
8 0
It depends on what the estimates were
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Draw a number line to show 1/4 and 4/16 are equivalent
tiny-mole [99]
|____|____|____|____|____|____|____|____|
0    1/16  2/16  3/16  4/16  5/16  6/16  7/16  8/16  
| _________________| _________________|
0                                1/4                               2/4
7 0
3 years ago
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. The volume of a cube is 1728 . Find its edge and total surface area
emmasim [6.3K]

Answer:

Edge = 12

Total Surface Area = 72

Step-by-step explanation:

Volume of the cube = 1728

Length of the edge = \sqrt[3]{1728}  = 12

We know that

TSA (Total Surface Area) = 6 {a}^{2}

where a = length of edge of cube

So,

TSA of cube = 6 \times 12 = 72

7 0
2 years ago
Need help asap!!!!!!!
kherson [118]

Answer:

Multiplication

Step-by-step explanation:


3 0
3 years ago
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Q..3/4 of a piece of metal has a mass on 15 kg. What is the mass of 2/5 of a piece of metal ?
Margarita [4]

Answer

8kg

Explanation

3/4--------15

2/5-------x

cross multiplying

3/4×X = 2/5×15

3X/4 = 30/5

3X/4 = 6

cross multiplying

3X = 4×6

3X = 24

dividing bothsides by 3

3X /3 = 24/3

X = 8

therefore, the answer is 8 kg

8 0
2 years ago
A certain forest covers an area of 3100. Suppose that each year this area decreases by 4.75% . What will the area be after 7 yea
e-lub [12.9K]

Answer:

Step-by-step explanation:

This can be represented as exponential decreasing function.

   y = a(1 - r)t

       a = starting amount

       r = rate

       t = years

   y = 1600(1 - .0725)15

     = 1600(.9275)15

     = 1600(.32337673)

     = 517.40

In 15 years,  the forest will shrink in size to 517.40 km2

3 0
3 years ago
Read 2 more answers
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