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Fofino [41]
2 years ago
15

As a block of ice melts, its weight changes from 1 /34 lb to 1/4 lb. This change takes 1/4 h. The ice melts at a constant rate.

At what rate does the weight of the ice change? Show your work.
PLZ HELP ME?!?!?
Mathematics
1 answer:
levacccp [35]2 years ago
3 0
You must have these backwards as 1/34 lb is less than 1/4 lb. finding a common denominator, we get (17/68 - 2/68)/(1/4) = 60/68 = 15/17 lb/hour
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PLEASE HELP ME
denis23 [38]

Answer:

(1) The possible outcomes are: X = {0, 1, 2, 3}.

(2) The number of times should Hartley spin a difference of 1 is 36.

(3) The number of times should Hartley spin a difference of 0 is 24.

Step-by-step explanation:

The number of sections on the spinner is 4 labelled as {1, 2, 3, 4}.

The total number of spins for each of the spinner is, <em>n</em> = 96.

(1)

The sample space of spinning both the spinners together are:

S = {(1, 1), (1, 2), (1, 3), (1, 4)

      (2, 1), (2, 2), (2, 3), (2, 4)

      (3, 1), (3, 2), (3, 3), (3, 4)

      (4, 1), (4, 2), (4, 3), (4, 4)}

Total = 16.

The possible outcomes are:

X = {0, 1, 2, 3}.

(2)

The sample space with the difference 1 are:

S₁ = {(1, 2), (2, 1), (2, 3), (3, 2), (3, 4), (4, 3)}

n (S₁) = 6

The probability of the difference 1 is:

P(\text{Diff}=1)=\frac{n(S_{1})}{N}=\frac{6}{16}=\frac{3}{8}

The spinners were spinner 96 times.

The expected number of times would Hartley spin a difference of 1 is:

E(\text{Diff}=1)=P(\text{Diff}=1)\times n\\\\=\frac{3}{8}\times 96\\\\=36

Thus, the number of times should Hartley spin a difference of 1 is 36.

(3)

The sample space with the difference 0 are:

S₂ = {(1, 1), (2, 2), (3, 3), (4, 4)}

n (S₂) = 4

The probability of the difference 0 is:

P(\text{Diff}=0)=\frac{n(S_{2})}{N}=\frac{4}{16}=\frac{1}{4}

The spinners were spinner 96 times.

The expected number of times would Hartley spin a difference of 0 is:

E(\text{Diff}=0)=P(\text{Diff}=0)\times n\\\\=\frac{1}{4}\times 96\\\\=24

Thus, the number of times should Hartley spin a difference of 0 is 24.

4 0
2 years ago
Is the answer a b c please help
satela [25.4K]

Answer:

B, you were right

Step-by-step explanation:

15*5=75

1125/75=15

8 0
3 years ago
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Aneli [31]

Answer:

Table #4, with the r and the s

Step-by-step explanation:

It shows some kind of pattern

4 0
2 years ago
How many times does 4 go into 236
Mazyrski [523]
4 goes into 236 fifty nine times.
8 0
3 years ago
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A child is playing a game of horseshoes the child’s hand is that a height of 2.6 feet and needs to release the horse you to get
Andrews [41]

Answer:

18°  

Step-by-step explanation:

The angle of depression θ from the child's hand and the angle of elevation from the target are congruent.

In the diagram below,

tanθ = 2.6/8

       = 0.325

    θ = tan⁻¹0.325

       = 18°

The angle of depression is 18°.

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3 years ago
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