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pishuonlain [190]
2 years ago
13

Determine the quotient of 2/3 divided by 4/5

Mathematics
1 answer:
fomenos2 years ago
8 0
It’s 5/6
explanation:
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In order to solve for the variable in the equation Mikel first applies the distributive property. Which equation is a result of
Ede4ka [16]

Answer:

1 - x - 2 + 2x = 10x - 25 - x

Step-by-step explanation:

We have the expression: 1 - (x+2) + 2x = 5(2x - 5) - x

Applying the distributive property we get:

1 - x - 2 + 2x = 10x - 25 - x

So, the following equation is the result of that step: 1 - x - 2 + 2x = 10x - 25 - x

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3 years ago
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Absolute value of -12 and -15
kvasek [131]

Absolute value- the amount a number is away from zero. With this information, we can conclude,

|-12| = 12

|-15| = 15

5 0
3 years ago
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The amount of time workers spend commuting to their jobs each day in a large metropolitan city has a mean of 70 minutes and a st
Xelga [282]

Answer:

81.85% of the workers spend between 50 and 110 commuting to work

Step-by-step explanation:

We can assume that the distribution is Normal (or approximately Normal) because we know that it is symmetric and mound-shaped.

We call X the time spend from one worker; X has distribution N(μ = 70, σ = 20). In order to make computations, we take W, the standarization of X, whose distribution is N(0,1)

W = \frac{X-μ}{σ} = \frac{X-70}{20}

The values of the cummulative distribution function of the standard normal, which we denote \phi , are tabulated. You can find those values in the attached file.

P(50 < X < 110) = P(\frac{50-70}{20} < \frac{X-70}{20} < \frac{110-70}{20}) = P(-1 < W < 2) = \\\phi(2) - \phi(-1)

Using the symmetry of the Normal density function, we have that \phi(-1) = 1-\phi(1) . Hece,

P(50 < X < 110) = \phi(2) - \phi(-1) = \phi(2) - (1-\phi(1)) = \phi(2) + \phi(1) - 1 =  \\0.9772+0.8413-1 = 0.8185

The probability for a worker to spend that time commuting is 0.8185. We conclude that 81.85% of the workers spend between 50 and 110 commuting to work.

Download pdf
7 0
3 years ago
Robert has $18 to spend on ring tones for his new cell phone. Each ring tone costs $1.95 to download. By rounding the cost of th
kenny6666 [7]

Answer:

B

Step-by-step explanation:

is you do 18÷1.95=9.2 which is just 9 rounded up.

5 0
3 years ago
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A recipe calls for 2 1/4 cup milk you only have 1/3 of that how much more milk will you need
Neporo4naja [7]

Answer:

Exact form: 23/12

Decimal form: 1.916 repeating

Mixed number form: 1_11/12

Step-by-step explanation:

Turn 2_1/4 into fraction

(2 x 4) = 8 + 1 = 9

9/4 - 1/3 = 23/12

6 0
3 years ago
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