Three times a number = 3x
Increased by 8 = + 8
So far we have: 3x + 8
no more than = <=
the number decreased by 4 = x -4
Put it all together and we have:
3x + 8 <= x - 4
Solve for x
3x + 8 <= x - 4
3x - x <= -4 - 8
2x <= -12
2x / 2 <= -12 / 2
x <= -6
-6 is the number / answer.
Answer:
Store #1
Step-by-step explanation:
Answer:
But we need to calculate the mean with the following formula:
And replacing we got:
And for the sample variance we have:
And thi is the best estimator for the population variance since is an unbiased estimator od the population variance
Step-by-step explanation:
For this case we have the following data:
1.04,1.00,1.13,1.08,1.11
And in order to estimate the population variance we can use the sample variance formula:
But we need to calculate the mean with the following formula:
And replacing we got:
And for the sample variance we have:
And thi is the best estimator for the population variance since is an unbiased estimator od the population variance
Answer:
$4.49
Step-by-step explanation:
If bananas are $5.99, we need to find 75% of the price, or 25% off. There are two ways we can do this, I'll show the more detailed way. First, we multiply 5.99 by .25 to find 25% of it. We got ~1.50. This means that 25% of 5.99 is 1.50. Now, we take away 1.50 from 5.99. This gets us $4.49. That means the price of the bananas with the discount is $4.49. The other way we can do this is multiply 5.99 and .75 (because 25+75=100). This gets us 4.4925, which rounds to $4.49. I hope this helps!
Answer:
$2(T) + $1.5(S) = $34
Step-by-step explanation:
Let:
tickets be represented by T
Snacks be represented by S
As total amount she paid is $34
The expression would be:
$2(T) + $1.5(S) = $34
i hope it will help you!