3 years ago

What is the answer to 3x + 2 = 4x

1 answer:

5 0

X=2
because if you subtract 3x on both sides you end up with x=2 <span />

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frozen [14]

X=-.25,-.5,-1,1,.5,.25
y=1,2,4,-4,-2,-1

4 0

3 years ago

Klio2033 [76]

200, because the more samples you have the more correct you will be.

5 0

3 years ago

zimovet [89]

Answer:

Option D) $275

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = $235

Standard Deviation, σ = $20

We are given that the distribution of amount of money spent by students is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

We have to find the value of x such that the probability is 0.975

$P( X < x) = P( z < \displaystyle\frac{x - 235}{20})=0.975$

Calculation the value from standard normal z table, we have,

$P( z < 1.960) = 0.975$

$\displaystyle\frac{x - 235}{20} = 1.960\\x =274.2 \approx 275$

Approximately 97.5% of the students spent below $275 on textbook.

7 0

2 years ago

aalyn [17]

Since he gained 4.5 lbs but he lost 4 + 3.5 + 2 = 9.5 lbs, in total, he lost 5 lbs.
hope it helps!
hit the thank you button!

4 0

2 years ago

-BARSIC- [3]

Slope = 18/6 = 3
Y-intercept = -6
Equation: y = 3x -6

6 0

3 years ago