First, combine like terms.
3y+3x>-6x+12
Next, because there can not be the same variable on both sides, add 6x to both sides.
3y+9x>12
Answer: 336 cm²
Step-by-step explanation:
A trapezoid looks like a rectangle with 2 traingles attached to the side, yeah? So imagine cutting off those 2 triangles. In the middle you have a rectangle with the dimensions of 14 cm by 16 cm. The area of that rectagle is 224 cm². By subtracting the top base length from the bottom base length, you get the length of the two triangles. So, it would be 28 cm - 14 cm, giving you 14 cm. There were 2 triangles, so cut that length in half and you get 7 cm for the base of one traingle. To find the area of 1 traingle, you would do 1/2 multiplied by 7 multiplied by 16. But you have 2 triangles. so the 1/2 step isn't needed because if you put the two triangles together, you get a new rectangle. Thus, when you add the area of this new rectangle, you get 112 cm². Add this to the original rectangle, and your final area is 336 cm².
Answer:
Start by distributing the 15 to the (m-1). 9+12m=6+15m-15. Then combine like terms. 9+12m=15m-9. Next move the variable all to one side, it doesn't matter which variable you choose. I'll use 12m so when I subtract I am still left with a postive coefficient. To move the 12m we subtract it from both sides of the equation. We are left with 9=3m-9. Next we isolate the m by canceling out the 9. We do this by adding 9 to both sides. We are left with 18=3m. Finally, to completely isolate the m, we must divide both sides by the coefficient, 3. The result is 6=m. The answer is 6 months. You can check this by plugging 6 back into the equation where there is an m. (sorry for the long answer)
Step-by-step explanation:
Answer: Julius = 9
Kareem = 14
Wilt = 29
Step-by-step explanation:
Let Kareem's score be x , this means that Julius' score will be x -5 , since he scored 5 less than Kareem's score. Also, Wilt's score will be : 2x + 1.
Since wilt's score is 20 more than Julius' score , this means that the difference between Julius's score and Kareem's score must be 20 , that is
2x + 1 - ( x - 5 ) = 20
2x + 1 - x + 5 = 20
2x - x + 1 + 5 = 20
x + 6 = 20
x = 20 - 6
x = 14
Since x represents Kareem's score , the Kareem's score is 14
Julius' score is x- 5, which is 14 -5 = 9
Wilt's score is 2x + 1 = 2(14) + 1= 29
The answer is 20 hours.
If window washing crew can finish 10 windows per hour. Let;s solve how many hours will it take him to finish 200 windows.
=> 200 / 10 = 20 hours,
