Answer:
9
Step-by-step explanation:
What you are most interested in is the remainder after dividing by 3.
If the remainder is 0, then the answer is - 8
If the remainder is 1, then the answer is 9
If the remainder is 2, then the answer is 26
82/3 = 27 with a remainder of 1.
The answer is 9
Answer:
90.5398
Step-by-step explanation:
Answer:
$59
Step-by-step explanation:
There is a discount of $3 on price of shirt and jeans [both]
Shirt (per unit cost):
Before Discount: $12
After Discount: $12 - $3 = $9
Jeans (pair cost):
Before Discount: $19
After Discount: $19 - $3 = $16
Pani wants to buy 3 shirts and 2 pair of jeans. So her cost would be:
59 dollars.
Answer:
Step-by-step explanation:
Let's remember that if we replace one equation in a system with a linear combination of the equations (ie adding or subtracting them together, after multiplying them with some nice numbers) we are left with an equivalent system. So let's add and subtract them together, and use the new equations to work with.
Better, now let's simplify the expression and let's use the new system
Done. At this point you can use whatever method you like to solve the system to get to the final solution. Adding and subtracting works great, and you get which, if you check by replacing in the original, is indeed a valid solution.