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Pavel [41]
3 years ago
5

4. Solve each equation for the variable. Show your work. (8 points: 2 points each with work shown)

Mathematics
2 answers:
notka56 [123]3 years ago
6 0

Step-by-step explanation:

A 10 + x = 23

x = 23 - 10

x = 13

B - 7.4x = - 22.2

x = - 22.2 / - 7.4

x = 3

C 12.7 = x - 3.8

12.7 + 3.8 = x

16.5 = x

D - 3/5x = 6

-0.6x = 6

x = 6/- 0.6

x = - 10

nevsk [136]3 years ago
3 0

Answer:

for c x = -3

Step-by-step explanation:

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The number of miles Ford trucks can go on one tank of gas is normally distributed with a mean of 350 miles and a standard deviat
kati45 [8]

Answer:

The probability that a randomly chosen Ford truck runs out of gas before it has gone 325 miles is 0.0062.

Step-by-step explanation:

Let <em>X</em> = the number of miles Ford trucks can go on one tank of gas.

The random variable <em>X</em> is normally distributed with mean, <em>μ</em> = 350 miles and standard deviation, <em>σ</em> = 10 miles.

If the Ford truck runs out of gas before it has gone 325 miles it implies that the truck has traveled less than 325 miles.

Compute the value of P (X < 325) as follows:

P(X

Thus, the probability that a randomly chosen Ford truck runs out of gas before it has gone 325 miles is 0.0062.

7 0
3 years ago
HELP PLEASEEE with steps
zysi [14]
<h3>Answer: Choice C) 421.9</h3>

=======================================

Explanation:

You're on the right track. You wrote down the proper expression to get the final answer, assuming you meant to write 75/4 as the third term inside the parenthesis. This works because each time you cut the side length in half to get each smaller triangle's side. The 3 is because there are 3 sides for each of the triangles. Much of this I have a feeling you already know as you wrote down the expression on the page, though I'm not 100% sure of your mindset. Computing this expression leads to 421.875 which rounds to 421.9

note: an alternative is to write 3*75 + 3*75/2 + 3*75/4 + 3*75/8, though that is more work. It's better to have that 3 factored out.

8 0
3 years ago
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