Answer:
So there are alot of various properties that could be used to solve different kinds of algebraic expressions. To solve a simple algebraic equation, most of the times u need to know the, addition, subtractions properties as well as division and multiplication division property.
Hope this helps!
Answer:
x <-2
Step-by-step explanation:
-3x+6>12
Subtract 6 from each side
-3x+6-6>12-6
-3x> 6
Divide each side by -3, remembering to flip the inequality
-3x/-3 < 6/-3
x <-2
Answer is t_<10
-3t+9_>-21
-3t_>-30
t_<10
**when you divide or multiply both sides by a negative you have to flip the sign**
you can substitute numbers to make sure your answer is correct. For example if u substitute t=9 -27+9_>-21 -18_>-21 which is correct.(but you’ll see it’ll be incorrect if u put t=11)
The sale price of the coats is 160% of the purchase price of the coats.
<u>Step-by-step explanation:</u>
The owner buys the coats at a purchase price= $60
He sells the coats for a selling price= $96
Now, the question is:
The selling price $96 is what percentage of the purchase price $60
<u>step 1</u>: 96= x% of 60
<u>step 2</u>: 96= (x/100)*60
<u>step 3</u>: 96= 6x/10
<u>step 4</u>: 960/6 = x
<u>step 5</u>: x = 160%
Answer:
242cm^2
Step-by-step explanation:
The formula for surface area of a rectangular(assuming that's what you have) is Perimeter of the Base(height) + 2(Area of the Base)
Or you could add up all the sides, or use this formula
SA=2(length*width)+2(length*height)+2(height*width)
2×(10×7 + 10×3 + 7×3)
helpful links:
https://www.khanacademy.org/math/ basic-geo/basic-geo-volume-sa/basic-geometry-surface-area/v/surface-area-of-a-box
http://www.math.com/tables/geometry/surfareas.htm
https://www.basic-mathematics.com/surface-area-formula.html