Explaon two ways to find the sale price of an item marked 30% off

Answers

Answer 1
Answer:

Answer:

Step-by-step explanation:

1) First take the price of the item, let's say it is $10, and multiply it by 0.7. This will give you the price of the item AFTER the sale price is already taken off.

$10 x 0.7 = $7

2) Another way is to multiply the price by 0.3. Take that number and subtract it from the full price to get your discounted price.

$10 x 0.3 = $3

$10 - $3 = $7


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What is 78% of 550? (Percent calculations)

Answers

To fine 78% of 550, all you have to do is multiply 550 by 0.78

550*0.78=429

What is the least perimeter of a rectangle with an area of 39 square feet

Answers

Ths answer is 80 squared feet

The sum of three consecutive even numbers is 78. What is the first number

Answers

even consecutive numbers are 2 apart
(2,4,6, example)
so they are
n,n+2,n+4
their sum is 78
n+n+2+n+4=78
3n+6=78
minus 6
3n=72
divide 3
n=24
smallest is 24
3x + 3 = 78
3x = 75
x = 25
So the three numbers are 25, 26, and 27.

How to factor 27 - 9x + 15y

Answers

27-9x+15y

Factor out common  term 3 :

= 3(5y-3x+9)

hope this helps!

Determine whether the given point lies on the graph of the inequality. (-1,-3); -x-6y < 19.

in this case, is the point on the graph (yes or no)

Answers

-x - 6y < 19. 

Point ( -1, -3)   
โ‡”    x = -1   ,  y = -3
instead of the variables you need to put the values โ€‹โ€‹of x and y ( coordinates of the point )
- (-1) - 6*(-3) < 19

we calculate

1 + 18 < 19    
record turns mushy

Proposal
the point does not belong to the graph



Convert 198 grams to kilograms

Answers

Answer:

it's 0.198

Step-by-step explanation:


Answer:

0.198

Step-by-step explanation:

divide 198 by 1,000