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Oxana [17]
3 years ago
12

In a certain candy store, 3 pounds of candy and 2 pounds of mints cost $10.80, and 1 pound of candy and 3 pounds of mints cost $

5.35. What is the cost per pound of the mints?
A.mints are 65¢ per lb
B.mints are 75¢ per lb
C.mints are 85¢ per lb
Mathematics
2 answers:
lesya692 [45]3 years ago
7 0
3 * C + 2 * M = 10.8

1 * C + 3 * M = 5.35

C = 3.1 $

M = 0.75 $ p

so B
Tasya [4]3 years ago
3 0
3c + 2 m = 10.80
1c + 3m = 5.35

Rewrite the second equation as: c = 5.35 - 3m
Now plug this new equation into the first equation in place of the c.

3(5.35 - 3m) + 2m = 10.80
16.05 - 9m + 2m = 10.80
Combine like terms
16.05 - 7m = 10.80
Subtract 16.05 from both sides
-7m = 10.80-16.05
-7m = -5.25
Divide both sides by -7
m = 5.25
m - .75
Letter B 75 cents per pound
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Step-by-step explanation:

from what I can see there are 2 options to make the 2 triangles congruent :

either the opposite sides must be equal or the neighboring sides must be equal.

so, either

5x = 3x + 10

and

5x - 2 = 4x + 3

or

5x = 4x + 3

and

5x - 2 = 3x + 10

for the first

5x = 3x + 10

2x = 10

x = 5

control

5x - 2 = 4w + 3

5×5 - 2 = 4×5 + 3

23 = 23

correct.

for the second

5x = 4x + 3

x = 3

control

5×3 - 2 = 3×3 + 10

15 - 2 = 9 + 10

13 = 19

no, not a valid solution.

so, x = 5

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2 years ago
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astraxan [27]
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The next two numbers are 20, and -4

Hope this helps!
7 0
3 years ago
A mutual funds company’s newsletter says, "A well-diversified portfolio includes assets with low correlations." The newsletter i
LekaFEV [45]

Answer:

The less the correlation between two variables means the more different their output is.

A.) If Rachel wants to diversify her investment by investing on bonds that do not closely follow the returns on the bond. then she should invest in the stocks with low correlation with bonds. I.e: small cap stocks.

B.) Similarly, due to low correlation, small cap bonds will increase ( comparatively to large cap bonds) as the return on her bonds wil drop and vice versa.

8 0
3 years ago
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Answer:

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Step-by-step explanation:

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3 years ago
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babunello [35]

Answer:

30 and 3.4641

Step-by-step explanation:

The mean of a binomial distribution is:

μ = np

And the standard deviation of a binomial distribution is:

σ = √(npq)

Here, n = 50, p = 0.60, and q = 0.40.

μ = np = 50 × 0.60 = 30

σ = √(npq) = √(50 × 0.60 × 0.40) = 3.4641

3 0
3 years ago
Read 2 more answers
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