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3 years ago

What is 0.82 as a fraction

Mathematics

2 answers:

AleksAgata [21]3 years ago

8 0

It's 82/ 100 because the 2 is in the hundredths place so it would still be 82/100

shepuryov [24]3 years ago

4 0

I am pretty sure it's 82/100.

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During a tunnel construction project, engineers used explosives to excavate partway into a mountain. Because of time constraints

AnnyKZ [126]

The given data can be tabulated as:

number of days,x length of tunnel (ft), y

0 225

5 350

20 725

30 975

55 1,600

To check if the growth is linear, the slope at points (0, 225) and (5, 350), and (0, 225) and (20, 725) should be equal. The formula for slope is:

m = (y2 – y1) / (x2 – x1)

Finding for slope (0, 225) and (5, 350):

m = (350 – 225) / (5 – 0) = 25

Finding for slope (0, 225) and (20, 725):

m = (725 – 225) / (20 – 0) = 25

Therefore the equation is linear in the form of:

y = mx + b

where b is the value of y at x = 0, so b = 225

The complete equation is:

y = 25x + 225

At x = 86 days

y = 25(86) + 225

y = 2,375 ft

Therefore the length of the completed tunnel is 2,375 feet.

5 0

3 years ago

please help 30 points !! in a proportional relationship when Y=2 when X=8 Which of the following equations would describe this r

Alex777 [14]

Answer:

(1)

Step-by-step explanation:

We will try:

(1) y = $\frac{1}{4}$ x => 2 = 2 (seems legit)

(2) y = 4x => 2 = 32 (nope)

(3) y = x - 6 => 2 = 2 (yes but actually no because it is proportional relationship)

(4) y = $\frac{1}{2}$ x - 2 => 2 = 2 (like the above)

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3 years ago

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andre [41]

Answer:

Step-by-step explanation:

J we be w e e e e d. D

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2 years ago

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Len [333]

So the answer is 3m^2n^5

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3 years ago

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Dmitry_Shevchenko [17]

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8 0

3 years ago

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