A because two negatives make a positive
Answer is D
Step by step explanation
Answer:
10 number of checks.
Cost = $6
Step-by-step explanation:
Given that:
Fixed Charges of first bank = $5
Charges of first bank per check = $0.10
Fixed Charges of second bank = $4
Charges of second bank per check = $0.20
To find:
Number of checks such that the charges for the banks become the same?
Solution:
Let the number of checks = 
Cost for the first bank for
checks = $5 + $0.10
Cost for the second bank for
checks = $4 + $0.20
As per question statement, both the costs are the same.
Comparing the values:

So, for 10 number of checks the cost will be same.
The cost = 4 + 0.20
10 = <em>$6</em>
Answer:
Not sure which ratio you need, but 6/9 = 2/3
Step-by-step explanation:
1.5xsalmon=swordfish
$39 = 2lb salmon and 3lb swordfish
1lb salmon=$6 6+6 = 12
1lb swordfish=$9 9+9+9 = 27
12+27 = 39
Let's use x to represent the number of hours since we don't know that.
750+250x<u><</u><u />2500
Subtract 750 from both sides.
250x<u><</u><u />1750
Divide both sides by 250.
x<u><</u><u />7
The most hours that they can do is 7, or it can be less.