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BaLLatris [955]
3 years ago
12

I need help asap!!

Mathematics
2 answers:
eduard3 years ago
8 0

because we have to find the total cost of one pound of the mixture, therefore first we will calculate the total cost of cashews and Peanuts and than we will divide the total cost by the total weight.

step by step solution:

cost of 4 pounds [email protected]$ 4/pound = 4 x 4= $16

cost of 4 pounds of peanuts @$2.50/pound = 4 x 2.50= $10.00

Now total cost= $16+$10= $26

now total weight= 4+4=8 pounds

Then cost of 1 pound of mixture= total cost÷ total weight

cost = 26÷8= 3.25

so answer is $3.25

klasskru [66]3 years ago
6 0

Answer: $3.25

Step-by-step explanation:

First you need to calculate the cost of the 8 pounds of nuts.

Cashews = 4 x $4 = $16

Peanuts = 4 x $2.50 = $10

The total cost of 8 pounds of nuts equals $16 + $10 = $26

In order to calculate the cost of 1 pound of the mixture you need to divide the total cost by the total weight.

$26 / 8 lbs = $3.25 / lb

The cost of one pound of the mixture is $3.25.

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The travel time on a section of a Long Island Expressway (LIE) is normally distributed with a mean of 80 seconds and a standard
user100 [1]

Answer:

The travel time that separates the top 2.5% of the travel times from the rest is of 91.76 seconds.

Step-by-step explanation:

Normal Probability Distribution

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Mean of 80 seconds and a standard deviation of 6 seconds.

This means that \mu = 80, \sigma = 6

What travel time separates the top 2.5% of the travel times from the rest?

This is the 100 - 2.5 = 97.5th percentile, which is X when Z has a p-value of 0.975, so X when Z = 1.96.

Z = \frac{X - \mu}{\sigma}

1.96 = \frac{X - 80}{6}

X - 80 = 6*1.96

X = 91.76

The travel time that separates the top 2.5% of the travel times from the rest is of 91.76 seconds.

3 0
2 years ago
Does anyone know what this answer this
serg [7]
I believe the answer is 7 since 8x squared is 64x and subtract 4x=60x
60x/16x multiplied by 5/x-5. but i am not sure since i do not know the value of X sorry buddy, just trying to help
4 0
3 years ago
A new movie opened in a local theater. On opening day, 985 people saw the movie. Each day after opening day, the number of peopl
zysi [14]

Answer:

About 3891 people saw that movie.

Step-by-step explanation:

Day 1: 985 people

Day 2: (985*8)/10 (20% gone) = 788

Day 3: (788*8)/10 (20% gone) = 630.4

Day 4: (630.4*8)/10 (20% gone) = 504.32

Day 5: (504.32*8)/10 (20% gone) = 403.456

Day 6: (403.456*8)/10 (20% gone) = 322.7648

Day 7: (322.7648*8)/10 (20% gone) = 258.21184

Adding this up:

985+788+630.4+504.32+403.456+322.7648+258.21184=

985+788+630+504+403+323+258=3891

4 0
3 years ago
-3(6) + 2(3) - 18 = 6<br><br>Is this incorrect or correct and why ?​
KiRa [710]
It is incorrect because when you times a negative by a positive. It is a negative number.
6 0
3 years ago
Solve this r/6=5 2/3
myrzilka [38]
First, incorporate the 5 into the 2/3 fraction by multiplying the 5 by the 3 and then adding that quantity by the 2, which now makes the fraction:
17/3
Now set it up with the equation:
r/6 = 17/3
r/6×3 = 17/3×3
r/3 = 17
r/3×3 = 17×3
r = 51
4 0
3 years ago
Read 2 more answers
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