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Answer:
y = 4x / x = 1/4 y
Step-by-step explanation:
chairs = x ( to find out how many chairs there are you have to take the legs and divide them by 4 )
Legs = y ( to find out how many legs there are you must multiply the amount of chairs by 4 )
Step-by-step explanation:
7(2x+5)=11x-9-x
14x+35=10x-9
4x+35=-9
4x=-44
x=-11
Answer:
138 cm.
Step-by-step explanation:
So first, we find the S.A. of the front and back.
The diagram says the side length of the front is 3 cm. and 3 cm.
3x3=9. So then, the back is also 9 cm, 9+9=18.
Now to find the S.A.'s of the four sides, you have to see the side lengths of each of them. The side lengths are 3 and 10.
3x10=30. This means each of them is 30 cm.
30x4=120. 120 is the total surface area of the four sides.
To find the total surface area of the whole rectangle, you add all the surface areas.
120+18=138 cm. (Not squared, since it's surface area and not area.)