Solve and explain your "Math Thinking" 12-7
2 answers:
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Find the area of the rectangle. You can find the area of a rectangle with the following formula:
w = width, and l = length.
Plug in your width and length:
The area of the rectangle is 200 square centimeters.
The area of a square is also given by width * length. Multiply the sides together:
The area of a square is 4x^2.
Because you're cutting away the square from the rectangle, you will subtract the area of the square from the area of the rectangle. The following equation will be your answer:
w = width, and l = length.
Plug in your width and length:
The area of the rectangle is 200 square centimeters.
The area of a square is also given by width * length. Multiply the sides together:
The area of a square is 4x^2.
Because you're cutting away the square from the rectangle, you will subtract the area of the square from the area of the rectangle. The following equation will be your answer:
The value of n is 11.
<u>Step-by-step explanation</u>:
The given expression is (n-9) ÷ 10 = -2
<u>To find the value of n</u> :
- From the expression, it is determined that (n-9) is the numerator and 10 is the denominator.
- Cross multiply the denominator in the left side of the expression to the another side.
The expression becomes (n-9) = (10 -2).
⇒ n-9 = -20
Keep the n term on one side and the constants on other side.
⇒ n = -20+9
⇒ n = -11
Therefore, the value of n is 11.