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lidiya [134]
2 years ago
10

1/3 of ___ is 1/27 please help asap

Mathematics
1 answer:
tekilochka [14]2 years ago
3 0

Answer:

1/9 use inverse.

Step-by-step explanation:

this is because you can use inversem since the word "of" indicates multiplication divide 1/27 and 1/3 and you get 1/3

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How would you solve 3/4 over 1/2 as a ratio
miskamm [114]

Answer:

  3/2

Step-by-step explanation:

A couple of different methods are used for dividing fractions.

1. "Invert and multiply". Dividing by a number is the same as multiplying by its reciprocal:

  (3/4) / (1/2) = (3/4) × (2/1)

  = (3·2)/(4·1) = 6/4 = 3/2

__

2. Make the denominators the same and use the ratio of numerators.

  (3/4) / (1/2) = (3/4) / (2/4) = 3/2

_____

For these fractions, you can recognize that 3/4 is 1/4 more than 1/2, and that 1/4 is half of 1/2. That means 3/4 is half-again as much as 1/2, so is 1 1/2 = 3/2 times 1/2. This tells you the ratio (3/4) : (1/2) = 3/2.

__

Along the lines of the above, you can write the ratio as ...

  (3/4) : (1/2)

and multiply by 4 to get

  = (3/4)×4 : (1/2)×4 = 3 : 2

6 0
2 years ago
Jan is x years old, her sister is twice as old as her, and her brother is three times older than her. Their ages add up to 29. H
victus00 [196]

Jan's age = 4\frac{5}{6} years

Sister's age =9\frac{2}{3} \: years

Step-by-step explanation:

Jan's age = x years

Sister's age = 2x years

Brother's age = 3x years

According to the given condition:

x + 2x + 3x = 29

6x = 29

x = 29/6

x = 4\frac{5}{6} years

2x = 2\times \frac{29}{6}= \frac{29}{3}=9\frac{2}{3} \: years

Therefore,

Jan's age = 4\frac{5}{6} years

Sister's age =9\frac{2}{3} \: years

3 0
3 years ago
Kreem has 70 flowers.He gives away some flowers.now he has 2 flowers. how many flowers did Kreem give away.
vova2212 [387]

Answer:

68 flowers

Step-by-step explanation:

70-2=68, meaning Kreem has given away 68. 70-2=68, meaning Kreem has given away 68. 70-2=68, meaning Kreem has given away 68. 70-2=68, meaning Kreem has given away 68. 70-2=68, meaning Kreem has given away 68. 70-2=68, meaning Kreem has given away 68. 70-2=68, meaning Kreem has given away 68. 70-2=68, meaning Kreem has given away 68. 70-2=68, meaning Kreem has given away 68. 70-2=68, meaning Kreem has given away 68. 70-2=68, meaning Kreem has given away 68. 70-2=68, meaning Kreem has given away 68. 70-2=68, meaning Kreem has given away 68. 70-2=68, meaning Kreem has given away 68. 70-2=68, meaning Kreem has given away 68. 70-2=68, meaning Kreem has given away 68.

7 0
3 years ago
Read 2 more answers
According to survey​ data, the distribution of arm spans for males is approximately Normal with a mean of 71.4 inches and a stan
Gekata [30.6K]

Answer:

a) 89.97% of men have arm spans between 66 and 76 ​inches.

b) The z-score for this​ person's arm span is 5.68. 0% of males have an arm span at least as long as this​ person

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 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.

Mean of 71.4 inches and a standard deviation of 3.1 inches.

This means that \mu = 71.4, \sigma = 3.1

a. What percentage of men have arm spans between 66 and 76 ​inches?

The proportion is the pvalue of Z when X = 76 subtracted by the pvalue of Z  when X = 66. The percentage is the proportion multiplied by 100.

X = 76

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

Z = \frac{76 - 71.4}{3.1}

Z = 1.48

Z = 1.48 has a pvalue of 0.9306

X = 66

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

Z = \frac{66 - 71.4}{3.1}

Z = -1.74

Z = -1.74 has a pvalue of 0.0409

0.9306 - 0.0409 = 0.8997

0.8997*100% = 89.97%

89.97% of men have arm spans between 66 and 76 ​inches.

b. A particular professional basketball player has an arm span of almost 89 inches. Find the​ z-score for this​ person's arm span. What percentage of males have an arm span at least as long as this​ person?

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

Z = \frac{89 - 71.4}{3.1}

Z = 5.68

The z-score for this​ person's arm span is 5.68.

Z = 5.68 has a pvalue of 1

1 - 1 = 0

0% of males have an arm span at least as long as this​ person

8 0
3 years ago
In a bookstore a shipment of 84 boxes of books arrives. Each box contains 25 books.How many books were in the shipment?
ryzh [129]
84 x 25 = 1700 books were in the shipment
7 0
3 years ago
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