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mash [69]
3 years ago
5

Problem -

Mathematics
2 answers:
MaRussiya [10]3 years ago
6 0

Answer:

The expression is 300÷t.

Step-by-step explanation:

Number  of chairs Gretchen has = 300.

Number of tables Gretchen has = t.

It is given that the chairs are evenly distributed among the given number of tables that is each table will have the equal number of chairs.

The number of chairs she should put can be found by the expression 300÷t.

Snezhnost [94]3 years ago
5 0
The expression is 300/t, \frac{300}{t}, or 300 divided by t
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Solve: -4 < -2x < 10
Minchanka [31]
<h3>Answer:   -5 < x < 2</h3>

Explanation:

The expression -2x means -2 times x. To undo this, we divide all parts of the inequality by -2. Dividing by a negative number will flip the inequality sign. We go from "less than" to "greater than"

-4 < -2x < 10

-4/(-2) > x > 10/(-2) .... inequality signs flip

2 > x > -5

-5 < x < 2

This unknown number x is between -5 and 2. It cannot equal -5. It cannot equal 2.

8 0
3 years ago
Which equation is equivalent to 10+2(x−1)+7x=3x+1?
Eva8 [605]

Answer:

Answer is x = -7/6

Step-by-step explanation:

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8 0
2 years ago
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AfilCa [17]
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6 0
3 years ago
Suppose a simple random sample of size n = 1000 is obtained from a population whose size is N = 2,000,000 and whose population p
faltersainse [42]

Answer:

p(x\geq 520)  = 0.0293

Step-by-step explanation:

Given data:

random sample size n = 1000

Population size is N - 2,000,000

P = 0.49

We know

\sigma_p = \sqrt{\frac{p*(1-p)}{n}}

\sigma_ p = \sqrt{\frac{0.49*(1-0.49)}{1000}} = 0.0158

Probability for having X =520

sample proportion \hat p = \frac{520}{1000} = 0.52

p(x\geq 520)  = P(\hat p\geq)

                       = P(Z\geq \frac{0.52 - 0.49}{0.0158})

                       = P(Z\geq 1.89) = 0.0293

p(x\geq 520)  = 0.0293

6 0
3 years ago
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Use the discriminant to determine the number of real solutions to the quadratic equation.
gulaghasi [49]

Answer:

There are two real and different roots

Step-by-step explanation:

The discriminant is given by b²-4ac

(-12)²-4(70×1)

144-280

136

Now 136>0

5 0
3 years ago
Read 2 more answers
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