3 years ago

5. Carlotta's Beauty Supply store sells two brands of bar soap. A 6 pack of Brand A costs

1 answer:

6 0

I think it would be be because you’re actually saving a little bit more amount of money you’re paying a dollar and would say two cent for each bar

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the cost of a candle varies directly with the volume of a candle. if a candle with a volume of 80cm^3 costs $12, what would be t

a_sh-v [17]

$120 \div 8. = 1.5$

$12 \times 1.5 = 18$

the answer is $18

good luck

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3 years ago

9. What is the likelihood that a randomly selected couple's relationship survived between 90 and 150 days

andrew-mc [135]

Answer:

0.5818

Step-by-step explanation:

Suppose the average teenage romantic relationship is normally distributed with a mean number of 100 days with a standard deviation of 30 days.

Answer:

The z score is used to determine how many standard deviations that the raw score is above or below the mean. If the z score is positive then the raw score is above the mean and if it is negative then it is below the mean. It is given by:

$z=\frac{x-\mu}{\sigma}\\ \\where\ \mu=mean,\sigma=standard\ deviation, x=raw\ score$

Given that:

$\mu=100\ days,\sigma=30\ days\\\\For\ x=90\\\\z=\frac{90-100}{30} =-0.33\\\\For\ x=150\\\\z=\frac{150-100}{30} =1.67$

Therefore, from the normal distribution table, P(90 < x < 150) = P(-0.33 < z < 1.67) = P(z < 1.67) - P(z < -0.33) = 0.9525 - 0.3707 = 0.5818

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3 years ago

NGO has a collection of dimes and quarters with a total of $3.50. The number of dimes is 7 more than the number of quarters. How

Tpy6a [65]

Answer: $24.50

Step-by-step explanation: $3.50 times 7 equals $24.50

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3 years ago

Brooklyn and Nicole are both driving along the same highway in two different cars to a stadium in a distant city. At noon, Brook

3241004551 [841]

Answer: B= -54t +367

N=-50t + 347

so in total would be 5 HOURS

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3 years ago

A fish tank has 10 goldfish, 6 tetras, 4 snails, and 2 platies. What is the ratio of tetras to platies?

Nat2105 [25]

Answer:

6:2

Step-by-step explanation:

ummmmmm I'm done it's just that I can't do 20 words

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3 years ago