Answer:
The number of new books sold = 10
The number of used books sold (u) = 15
The number of magazines sold(m) = 20
Step-by-step explanation:
Let us assume the number of new books = n
So, the number of used books sold (u) = New books sold + 5 = n + 5
Also, the number of magazines sold (m) = 2 x ( Number of new books sold)
= 2 n
⇒ u = n + 5, m = 2 n
Here, the cost of each new book n- = $12
So, the cost of n new books = n x ($12) = 12 n
the cost of each used book u = $8
So, the cost of u = (n+ 5) used books = n+5 x ($8) = 8 n + 40
the cost of each magazine m = $5
So, the cost of m = (2n ) magazines = 2n x ($5) = 10 n
Also, total earnings = $340
⇒ 12 n + 8n +40 + 10 n = 340
or, 30 n = 300
or,n = 300/30 = 10
Hence the number of new books sold = n = 10
The number of used books sold (u) = n + 5 = 15
The number of magazines sold = m = 2 n = 20
Answer:
14
Step-by-step explanation:
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x=-17 17
x=-2+2-6
x=-17 18
Answer:
There are 69
Step-by-step explanation:
1+(104-998)/13=69
Answer:
Step-by-step explanation:
In this representation, the middle refers to the median, which is calculated by separating elements in equal parts and see which data results in the middle.
From the graph you can observe that number 13 has 6 elements on its right side and 5 elements on its left side, which is the most proximity to the middle of the group of data.
Therefore, the answer is 13, it's in the center.
Answer:
13
Step-by-step explanation:
i'm assuming 13 because when you divide the total to sides that's what you get but i'm not 100% sure
708/100 or 7 2/25 as a mixed number