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marin [14]
2 years ago
12

Which expression is equivalent to Negative 2 and one-fourth divided by negative two-thirds? StartFraction 9 over 4 EndFraction d

ivided by three-halves Negative StartFraction 9 over 4 EndFraction divided by (negative two-thirds) Negative StartFraction 9 over 4 EndFraction divided by two-thirds StartFraction 9 over 4 EndFraction divided by (negative three-halves)
Mathematics
2 answers:
Tanzania [10]2 years ago
8 0

Answer:

The correct answer is:

Negative StartFraction 9 over 4 EndFraction divided by two-thirds

i.e.

-\dfrac{9}{4} \div \dfrac{2}{3}

Step-by-step explanation:

We have to find equivalent expression to :

Negative 2 and one-fourth divided by negative two-thirds

i.e.

-2\dfrac{1}{4} \div \dfrac{2}{3} = ?

We have to convert the the mixed fraction form -2\frac{1}{4} to simpler \frac{p}{q} fraction form.

Let us learn the concept first.

Mixed fraction is combination of a whole number and a fraction.

Expression of the form a\frac{b}{c} have the following understanding:

c is the divider

b is the remainder and

a is the quotient.

To convert mixed fraction to fraction we can use the following:

a\dfrac{b}{c} = \dfrac{a \times c+b}{c}

\therefore -2\dfrac{1}{4} = -\dfrac{(2 \times 4+1)}{4} = -\dfrac{9}{4}

Hence

-2\dfrac{1}{4} \div \dfrac{2}{3} = -\dfrac{9}{4} \div \dfrac{2}{3}

i.e. the given expression is equivalent to :

Negative StartFraction 9 over 4 EndFraction divided by two-thirds

lisov135 [29]2 years ago
8 0

Answer: 1.multiplication 2.  division

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If the value of Y is between 0.0078 and 0.01 which of the following could be Y?
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Step-by-step explanation:

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Norma Jean makes $25 per hour. She works 35 hours per week. She gets a commission of 15% on her total sales. How much should Nor
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$24166.67

Step-by-step explanation:

$25 per hour and works 35 hours per week

Norma Jean makes 35 * 25  (<em>without sales) = </em>$875

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Pedro has created the function f(x)= 4x-3/2 to represent the number of assingments he has completed where x represents the numbe
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The given function is
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The procedure is as follows:

1. Set y = f(x)
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2. Exchange x and y
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3. Solve for y
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4. Set y equal to f⁻¹ (x)
  f⁻¹ (x) = (x + 3/2)/4

5. Find f⁻¹ (30)
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2 years ago
The commute time to work in the U.S. Has a bell shaped distribution with a population mean of 24.4 minutes and a population stan
Schach [20]

Answer:

Q1 a) 0.9545

b) 0.02275

c) 0.97725

Q2 z is approximately equal to -1.466

Step-by-step explanation:

Q1 The given information are;

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The standard deviation = 6.5 minutes

a) The z-score for 11.4 is given as follows;

Z=\dfrac{x-\mu }{\sigma }

Where;

x = Observed value 11.4

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σ = The standard deviation = 6.5 minutes

Z=\dfrac{11.4-24.4 }{6.5 } = -2

The z-score for 37.4 is given as follows;

Z=\dfrac{37.4-24.4 }{6.5 } = 2

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The probability of commute time to be between 11.4 minutes and 37.4 minutes =  0.97725 - 0.02275 = 0.9545

b) From the z-score table, the probability that the commute time to be less than 11.4 minutes = The probability at z = -2 = 0.02275

c) From the z-score table, the probability that the commute time to be greater than 37.4 minutes = The probability at z = 2 = 0.97725

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Z=\dfrac{x-\mu }{\sigma }

Z=\dfrac{15-24.4 }{6.5 } = -\dfrac{94}{65} \approx -1.466

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