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N76 [4]
3 years ago
5

PLEASE PLEASE PLEASE HELP WILL GIVE BRAINLIEST 2/5 x + -6 + 7/15 x

Mathematics
2 answers:
Klio2033 [76]3 years ago
5 0

Answer:

13x/15-6

Step-by-step explanation:

i used symlobab

iogann1982 [59]3 years ago
3 0

Answer:

13x-90/15

Step-by-step explanation:

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denpristay [2]

Answer:

ABWJRIRISBDBDBHSHS

Step-by-step explanation:

Hatdog HWHWHWHSHSHSQIWIW

6 0
2 years ago
A recipe for snack mix call for 4 3/4 cups of cereal the amount of peanuts needed is 1 and 2/3 cups less than the amount of cere
BaLLatris [955]

Answer: 1st question=3 1/12 2nd question=6.4166667

Step-by-step explanation: Please correct me if I’m wrong, if I’m right, thank me.

8 0
3 years ago
Read 2 more answers
Babies born after 40 weeks gestation have a mean length of 52.2 centimeters (about 20.6 inches). Babies born one month early hav
Sveta_85 [38]

Answer:

a) Z = -2.88

b) Z = -0.96

c) 40 weeks gestation babies

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.

a. Find the standardized score (z-score), relative to all U.S. births, for a baby with a birth length of 45 cm.

Here, we use \mu = 52.2, \sigma = 2.5. So

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

Z = \frac{45 - 52.2}{2.5}

Z = -2.88

b. Find the standardized score of a birth length of 45 cm. for babies born one month early, using 47.4 as the mean.

Here, we use \mu = 47.4, \sigma = 2.5. So

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

Z = \frac{45 - 47.4}{2.5}

Z = -0.96

c. For which group is a birth length of 45 cm more common?

For each group, the probability is 1 subtracted by the pvalue of Z.

Z = -2.88 has a lower pvalue than Z = -0.96, so for Z = -2.88 the probability 1 - pvalue of Z will be greater. This means that for 40 weeks gestation babies a birth length of 45 cm is more common.

3 0
3 years ago
How does understanding place value help you to subtract across zeros?
Alex_Xolod [135]
Oh it helps because a zero could count as a number when you write it down but it doesn't seem that way when u say it
6 0
3 years ago
45/8 = <br> When you get the answer convert it to fraction form <br> I need it please
Lana71 [14]

Answer:

Exact Form:

45/8

Decimal Form:

5.625

Mixed Number Form:

5 5/8

8 0
2 years ago
Read 2 more answers
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