Answer: 1008 letters
Step-by-step explanation:
From the question, last Monday, a local mail carriers delivered 1,344 pieces of mail and of all the deliveries they made, 1 / 6 were magazines, 1 / 12 were packages, and the rest were letters. The fraction of letters will be:
= 1 - (1/6 + 1/12)
= 1 - (3/12)
= 9/12 = 3/4
We will now multiply 3/4 by 1344 to get the number of letters delivered.
= 3/4 × 1344
= 1008 letters
(1) y = 7x , (2) y = 11x , (3) y = 9x , (4) y = 28x
given y varies directly as x then y = kx ( k is the constant of variation )
(1) find k using the given conditions k = 
= 
= 7
equation is y = 7x
(2) k = 
= 11
equation is y = 11x
(3) k = 
= 9
equation is y = 9x
(4) k = 
= 28
equation is y = 28x
A and B are correct for this one!!
0.09 = (1/10) × what
Multiply both sides by 10.
0.90 = 10/10 × what
0.90 = what
_____
The first step is to write the relationship using mathematical symbols. (The math sentence follows the English sentence very closely, so that should not be trouble for you.)
The second step is to identify the coefficient of the variable (1/10) and then multiply both sides of the equation by its inverse (10/1). This leaves the variable multiplied by 1 and equated to the solution value.
0.09 is 1/10 of 0.90
_____
You can also recognize that 1/10 of something can be found by moving the decimal point one place to the left. That is, 1/10 of 12.34 is 1.234. This is a place-value thing.
Since 0.09 is 1/10 of something, it must have had its decimal point moved 1 place to the left. To find the original something, we move the decimal point back 1 place to the right: 0.9.
1. Horizontal fragmentation – a table is separated into groups of rows rationally and each fragment (group/sunset) comprises unique rows and it is kept at different node. All rows have the same attributes and the SELECT statement yields the contents of the fragments.
2. Vertical fragmentation – the table is distributed into rational groups of attributes (columns). Each fragment covers a unique columns and is stored at a dissimilar position. The content in the fragment is attained by using the “PROJECT” statement.
3. Mixed fragmentation –This approach is the mix of horizontal and vertical strategies. In other words, each row fragment may be a blend of groups of attributes.
