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Nutka1998 [239]
3 years ago
9

su ling started an art project with 1 yard of felt. she used to 2/6 yards on Tuesday and 3/6 yards on Wednesday. how much felt d

oes Su ling have left.
Mathematics
2 answers:
Natasha_Volkova [10]3 years ago
5 0
1/6 yards. All you have to do is add the two upper numbers (numerator) ans then subtract 6/6 - 5/6
Lina20 [59]3 years ago
3 0

Answer: Hello there!

Su ling needs to cover 1 entire yard for her art project.

On tuesday she used 2/6 yards, and 3/6 yards on Wednesday, so in these two days she used 2/6 + 3/6 = 5/6 yards in total.

Then she has 5/6 yards covered out of 1 yard total that she needs to cover (or 6/6 yards)

then she needs to do 1 -5/6 = 1/6 yards left.

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A quantity P is an exponential function of time I, such that P = 160 when t = 6 and P = 150 when I = 4. Use the given informatio
Klio2033 [76]

Answer:

  • k = 0.032
  • P0 = 131.836

Step-by-step explanation:

Perhaps you want to use the points (t, P) = (4, 150) and (6, 160) to find the parameters P0 and k in the equation ...

  P(t)=P_0\cdot e^{kt}

We know from the given points that we can write the equation as ...

  P(t)=150\left(\dfrac{160}{150}\right)^{(t-4)/(6-4)}=150\left(\dfrac{16}{15}\right)^{\frac{t}{2}-2}\\\\=150\left(\dfrac{16}{15}\right)^{-2}\times\left(\left(\dfrac{16}{15}\right)^{\frac{1}{2}}\right)^t

Comparing this to the desired form, we see that ...

  P_0=150\left(\dfrac{16}{15}\right)^{-2}\approx 131.836\\\\e^{k}=\left(\dfrac{16}{15}\right)^{1/2}\rightarrow k=\dfrac{1}{2}(\ln{16}-\ln{15})\approx 0.0322693

So, the approximate equation for P is ...

  P(t)=131.836\cdote^{0.032t}

And the parameters of interest are ...

  • k = 0.032
  • P0 = 131.836
4 0
3 years ago
Joe is saving money for his
tatyana61 [14]

Answer:

He will need to save $295

Step-by-step explanation:

he needs 450 and he has 155, so all you would do is subtract 155 from 450 and you get the rest he needs which is 295

6 0
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How much is 44000. times 10?
maxonik [38]
When multiplying by multiples of 10, move the decimal place one place over to the right. 44,000 becomes 440,000.
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Answer:

1/2 is the fractional part of cookie which was eaten by Dan.

Step-by-step explanation:

Dan has 2 1/2 cookies and ate 1/2, so we can just subtract the 2 1/2-1/2

which cancels out the 1/2, which is the fractional part.

He has 2 cookies left.

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