Answer:
20x+8
Step-by-step explanation:
in a rectangle, the sides opposite from each other are equal, and finding the perimeter means you going to add all the sides together
therefore we have
4x-1+4x-1+6x+5+6x+5=20x+8
One of the containers holds 200 ml
the other holds 7/8 as much, so multiply 200 times 7/8
200 * 7/8 = 1400/8 = 175 ml
Now add the two together.
200ml + 175ml = 375 ml
Multiply the top equation by 6 and the bottom equation by 7. You will cancel x first by doing this and solve for y. You should get y=-1.
Substitute in y for either original equation.
You should get x=1.
Solution is (1,-1).
