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3 years ago

PLS HELP NEED ASAP

Mathematics

2 answers:

lana66690 [7]3 years ago

8 0

Answer:

Please Mark Brainliest, you are an amazing person thank you and your welcome :D

Step-by-step explanation:

$54 / 6 = $9

nexus9112 [7]3 years ago

3 0

Answer:

Step-by-step explanation:

You can just divide the 54 by 6 to get the single cost, since it gives a constant rate (possibly not, but most likely since it doesn't mention taxes, tips, ect.)

The unit rate is 9 bucks per pizza.

I have no idea why we would use links in the first place.

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Tell whether the set of ordered pairs {(1, 6), (2, 9), (3, 12), (4, 15)} satisfies a linear function. Explain.

weeeeeb [17]

Answer:

Step-by-step explanation:

If you put them into a graphing calculator they all align. Have a nice day.

5 0

3 years ago

Marty's plant measured 7.35 inches at the beginning of the summer. It measured 8.125 inches at the end of summer. How much did M

Dmitry [639]

We need to find the distance between 8.125 and 7.35 to find how much the plant grew over the summer. We can subtract 7.35 from 8.125 to find this.
8.125 - 7.35 = 0.775
So Marty's plant grew 0.775 inches over the summer.

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4 years ago

Light bulbs usually cost 2$. They are on sale for 0.50 of the regular price. What is the sale price? Is this a better price than

Vinil7 [7]

Answer:

The sale price is $1

$1 is not a better price since there is a cheaper price of $0.7

Step-by-step explanation:

Original price is $2

The price now is 0.5 × $2 = $1

If the sale price was 0.35 of the original price;

It would be 0.35 × $2 = $0.7

$1 is not a better price since there is a cheaper price of $0.7

4 0

3 years ago

You randomly select one card from a 52-card deck. find the probability of selecting a blackblack twotwo or a blackblack eightei

nika2105 [10]

Since there are 26 black cards (1/2 of 52) and 2 black twos (one for each suite, and there are 2 black/red suites), we can use the same logic to get that there are 2 black eights. 2+2=4, and since there are 52 cards, you have a 4/52 or 1/13 (we get this because 4 goes into 52 13 times) chance of getting a black 8 or 2.

7 0

3 years ago

Babies born after a gestation period of 32-35 weeks have a mean weight of 2700 grams and a standard deviation of 700 grams, whil

Nutka1998 [239]

Answer:

The 33 week gestation period baby has the higher z-score, so he weighs more relative to other babies of the same gestation period.

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore 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 pvalue, we get the probability that the value of the measure is greater than X.

Who weighs more relative to other babies of the same gestation period?

Whoever has the higer z-score

33 - week baby.

Babies born after a gestation period of 32-35 weeks have a mean weight of 2700 grams and a standard deviation of 700 grams. A 33-week gestation baby weighs 2950 grams.

We have to find z when $\mu = 2700, \sigma = 700, X = 2950$ . So