This can be written as 3(n+12)=45, where n is the unknown number
3(n+12)=45 <- Starting Equation
3n+36=45 <- Distributive Property
3n=9 <- Cancel 36 on both sides
n=3 <- Divide both sides by 3
So n=3
Hope this helped!
If the formula is a+b-c then you need to substitute the letters with the numbers. For this equation the formula would be:
(1+3-4) + (2+5-6)
(4-4) + (7-6)
0 + 1
=1
The answer would be 1
It would be 21 out of 56. In simplifying terms its 3 out of 8.
To solve this problem, your need to find the perimeter of the frame and multiply it by 12 because there 12 frames. to find the perimeter, you just have to add 10 and 8 (18) and multiply the sum by two (36). Next, you have to multiply your product by 12 because there are 12 frames. Your final answer should be 432 inches of wood.
Answer:
3
Step-by-step explanation:
I'm guessing this is addition so....
15-12= 3
Or
12+_=15
_=3
12+3=15