Answer:
The answer is 204 square cm.
Step-by-step explanation:
You are asking for the surface area, and while calculating the surface area you will multiply the quantities.
Surface Areas: 17 cm multiply 12 cm
17 X 12 = 204
The answer is 204 sq. cm
Answer:

Step-by-step explanation:
1.235
= 1 + 0.235 ( the place value of the 5 is thousandths ) , then
=
+ 
=
( divide numerator/denominator by 5 )
=
← in simplest form
Answer: (18/5) * 11
Step-by-step explanation:
In equations of proportion, to proceed, we need to determine the constant of proportion, let's denote as "k"
Since y ~ x
Means y=kx.
To determine the value of k, we input initial values of y and x.
Initial value of y = 18
Initial value of x = 5
The equation becomes :
18 = 5k
k = 18/5.
Now, If given the value of x as 11,to determine the value of y we go back to the equation.
y= kx
y = 18/5 * 11.
Answer:
Length = 2x+y cm and since it's a rectangle,
2x+y=3x-y ---------------- (i)
width = 2x-3 cm
It's perimeter,
2(2x+y+2x-3)=120 ---------------- (ii)
Solving both equations,
x = 14 cm
y = 7 cm
so length is, 2×14+7 = 35 cm
and width is, 2×14-3 = 25 cm
so area will be, 35×25 = 875 cm²
Answered by GAUTHMATH