90
the answer is 90 but the answer i give has to be over 20 characters so i'm typing random things. have a good day:)
The equation for this problem is “y = x + 3”.
We can find the volume of one of the cubes, then multiply by 3996 to find the total volume.
The edge lengths are 1/3, so the area of one cube is:
(1/3)^3 = 1/27
The area of the prism is:
3996 * (1/27) = 148 in^3
First we need to calculate the selling price after 50% increase
selling price = original cost + increase
selling price = 100% original cost + 50% original cost
selling price = 150% original cost
selling price = 1.5 × original cost
selling price = 1.5 × 30
selling price = 45
The selling price after getting a markup is $45
Second, we need to calculate the sale price after markdown 50%
Right now, we use $45 as the original price not $30 to count the sale price
sale price = original price - markdown
sale price = 45 - 50% × 45
sale price = 45 - 0.5 × 45
sale price = 45 - 22.5
sale price = 22.5
The sale price is not $30
Answer:
X= 7 I hope this helped!
<u>Steps for equation/answer :</u>
1.Divide both sides by 3.
4x+9= 111/3
2.Simplify 111/3 to 37.
4x+9=37
3.Subtract 9 from both sides.
4x=37−9
4. Simplify 37-9 to 28.
4x=28
5. Divide both sides by 4.
x = 28/4
6. Simplify 28/4 to 7
x=7
