Money earned by bookstore is $ 12753
<em><u>Solution:</u></em>
Given that college bookstore sold 327 textbooks for $ 39 each
<em><u>To find: Money earned by bookstore</u></em>
From given question,
Cost of 1 book = $ 39
<em><u>Therefore money earned from selling 327 textbooks is given as:</u></em>
Money earned from selling 327 textbooks is calculated by multiplying cost of 1 book by 327
cost of 327 books = cost of 1 book x 327
cost of 327 books = 39 x 327
cost of 327 books = 12753
Thus bookstore earned $ 12753 from selling 327 books
Slope intercept is the same as usualy. thanks for using brainly!
Answer:
Range = 29
Variance= (X₁- U) ² / N= 973/10 = 97.3
Standard Deviation= √variance= √97.3= 9.864
Step-by-step explanation:
Range = Difference between the highest and lowest value = 97-68= 29
Variance
X₁ X₁-U (X₁- U) ²
80 0 zero
68 -12 144
71 -9 81
72 -8 64
95 15 225
89 9 81
97 17 289
72 -8 64
75 -5 25
81 1 1
∑ 800 ZERO 973
u= ∑X₁ /10=800/10=80
Variance= (X₁- U) ² / N= 973/10 = 97.3
Standard Deviation= √variance= √97.3= 9.864
(b) The important feature of the data is not revealed through the different measures of variation is that the variability of two or more than two sets of data cannot be compared unless a relative measure of dispersion is used .
He can share his candy bars with 4 friends and have 1/2 a candy bar left over for himself.
9w + 45 = 126
Ivan earns $9 per week so we would write it as 9w
Add 45 to it because that is what he also saved
Then he spent those savings which was 126.
Now we can find how many weeks he was saving for.
First minus 45 from both sides
9w = 126 - 45 = 81
The divide both sides by 9
w = 9
Ivan has been saving for 9 weeks