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Ulleksa [173]
2 years ago
9

C) How many fifths are there in 20?

Mathematics
2 answers:
Sladkaya [172]2 years ago
5 0

Answer:

they are 4 i think

Step-by-step explanation:

5 x 4 = 20

BartSMP [9]2 years ago
3 0

Answer:

100

Step-by-step explanation:

20 divided by 1/5 = 20 x 5/1 = 100

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In January of 2011, the U.S. saw an increase in gas prices. Imagine the average price per gallon was $3.12 with a standard devia
Arada [10]

Answer:

31.92%

Step-by-step explanation:

We are given;

Population mean; μ = $3.12

Sample mean; x¯ = $3.16

Sample size; n = 10

Standard deviation; σ = $0.27

Z-score formula is; z = (x¯ - μ)/(σ/√n)

z = (3.16 - 3.12)/(0.27/√10)

z = 0.04/(0.08538)

z ≈ 0.47

Now, the percent of other sample means, based on 10 gas stations, that would be greater than the one observed is;

P(x¯ > 3.12) = 1 - P(z < 0.47)

From z-table attached P(z < 0.47) = 0.68082

Thus;

P(z > 0.47) = 1 - 0.68082

P(z > 0.47) ≈ 0.3192

This expressed in percentage is 31.92%

4 0
2 years ago
The width of a DVD case is the same as the width of a
konstantin123 [22]

Answer:

12m

Step-by-step explanation:

Given that the area of the square  DVD case is 144 square cm

Since Area = L²

144 =L²

L = √144

L = 12m

Since the width of the DVD and its case are the same, hence the with of the DVD is also 12m

5 0
3 years ago
What should i do she’s always ignoring me and when she talks to me it’s so dry the only time she seems interested in talking to
PilotLPTM [1.2K]
Either she lowkey doesn’t wanna be your friend or she’s going through something mentally.
7 0
2 years ago
Which inequality is equivalent to −x&lt;12?
olga_2 [115]

Answer:

bottom left

Step-by-step explanation:

when divideing/mult by neg number, sign flips.

7 0
2 years ago
Read 2 more answers
5 divided by 7 as a decimal
JulsSmile [24]
0.714 good luck:) also all you have to do is just divide that in the calc and you should get the same answer:)
6 0
3 years ago
Read 2 more answers
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