3/4 + (1/3 ÷ 1/6) - (-1/2) =?
1 answer:
Answer:
[See Below]
Step-by-step explanation:
✦ Turn fractions into decimals:
- (We will do something different for
and
.)
✦ Divide:
- (Since the denominators are multiplies of each other we can divide them without having to change them into decimals.)
✦ Simplified Equation:
✦ Add:
✦ Subtract:
- (Subtraction rule is if there is 2 negatives next to each other in a problem it turns into a positive.)
✦ So your answer would be:
(Exact Form)
(Mixed Number Form)
(Decimal Form)
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Answer:
Therefore, the area of green space would be 30 square yards.
Step-by-step explanation:
The area G that is designated as green space can be modeled by the polynomial
the area M that is devoted to mechanical support can be modeled by the polynomial
We are asked to find the area of the green space, when area of roof (R) is 36 square yards.
The area of roof would be equal to sum of areas of green space and mechanical support.
the total area is given by 36 yd^2. And we know that:
Replacing the info given we got:
And we can rewrite this expression like this:
And we can use the quadratic formual to solve this problem:
With a = 3, b = -16 , c =-12. Replacing we have
And the solutions for this case are:
Since length cannot be negative, therefore, the value of x would be 6.
The area of green space would be:
x = 6
the area of green space would be 30 square yards.
Answer:
No, it is incorrect.
Step-by-step explanation:
The quadratic equation is
or
. To complete square we take the coefficient of x divided by 2, square that value and add the result to both sides. In the equation given the number to do the process is 20, not 6, then the solution method is incorect.