-4x +4 = -3x + 31
4 - 31 = -3x + 4x
-27 = x
Answer:
42
Step-by-step explanation:
3/4 is division which equals .75
0.75 x 56 = 42
Percent is basically a fraction out of 100.
80% = 80/100.
80/100 = 8/10 = 4/5.
I think it would be s = 81 in.
The last one (Not sure though)
The average number of skateboards produced per day last year is 310.
<h3>What is a normal distribution?</h3>
It's the probability curve of a continuous distribution that's most likely symmetric around the mean. On the Z curve, at Z=0, the chance is 50-50. A bell-shaped curve is another name for it.
We have:
The standard deviation of skateboards produced was 20 skateboards. They found they produced up to 280 skateboards on 93.32% of the days last year.
Z- score at 93.32% is -1.5
We know:


μ = 280 + 30
μ = 310
Thus, the average number of skateboards produced per day last year is 310.
Learn more about the normal distribution here:
brainly.com/question/12421652
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