If 3x-y=12, what is the value of 8x/2y?
Answer:

Step-by-step explanation:


-------------------------(equation 1)
Now,
---------(from equation 1)



Therefore, the value of 
Answer:
88 cm²
Step-by-step explanation:
The perimeter of each square is 22 cm
we should divide by 4 to get the length of the square
22/4=5.5 cm
so we should multiply by 2 to get the length of the rectangle
5.5*2= 11
the perimeter is :
P= 5.5+5.5+5.5+11+11+5.5+5.5+11+11+5.5+5.5+5.5 = 88 cm²
Answer: I think it's Coincidence.
Step-by-step explanation:
Divide 7/24 by 35/48 and reduce the quotient to the lowest fraction.
1) Flip fraction 35/48 giving you 48/35. When you do this, you will be multiplying instead of dividing.
2) 7/24 times 48/35. Cross simplify the two fractions resulting with 1/4 times 8/6.
3) Multiply across from left to right giving you 8/24.
4) Simplify. 1/3
Answer:
6 (or 6.15, depends))
Step-by-step explanation:
We can write 3 1/4 as 3,25, as 1/4=0.25. This will make our calculation easier.
Now, if 3.25 cups gives us 1 batch, and we have 20 cups, we just need to get how many times the number 3.25 enters on 20. This means we just need to divide 20 by 3.25:
20 / 3.25 = 6.15 (aprox)
So, with 20 cups she can bake 6.15 batches. If you can't have decimal numbers (because there are not decimal oh partial batches, for example), your answer is 6. This last point will depend on the statement of your exercise.
Another way of doing it is simply sum 3.25 until you arrive to 20:
3.25 + 3.25 = 6.5
3.25 + 3.25 + 3.25 = 9.75
...
3.25 + 3.25 + 3.25 + 3.25 + 3.25 + 3.25 = 19.5
So, with 19.5 cups you get 6 batches.