Andy estimated that he would need 71 feet of lumber for a tree house project. He later found that the actual amount of lumber needed was 60 feet. What was the percent error of Andy's estimation?18.33%





15.49%





11%





84.51%

Answer:

6n - 4

Step-by-step explanation:

product means to multiply

let the number be n, then

product of 6 and n = 6 × n = 6n

4 less than this product means subtract 4 from it, hence

6n - 4 ← required expression

Answer:

30

Step-by-step explanation:

Adjacent angles of a parallelogram add up to 180 degrees, meaning that (3x)+(x+60)=180 degrees. You can use this to set up the following equation:

3x+x+60=180

4x=120

x=30 degrees. Hope this helps!

Final answer:

In a parallelogram, opposite angles are equal. Therefore, set 3x (angle A) equal to x + 60 (angle D). Solving for x, we get x = 30.

Explanation:

In this case, we're working with a parallelogram, and one of the properties of a parallelogram is that its opposite angles are equal. That means that ∠A is equal to ∠D. So we set (3x) equal to (x + 60).

To determine the value of x, we can solve this equation:
3x = x + 60. Subtract x from both sides to get 2x = 60, then divide by 2 to get x = 30.

So, the value of x that makes ABCD a parallelogram is 30.

Learn more about Parallelogram here:

brainly.com/question/31342904

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3.5 belongs to Rational number sets mainly and also belongs to Real Numbers.

Step-by-step explanation:

Number Sets are nothing but group of number classified into groups.

They are Natural, Whole, Integers, Rational, Irrational and Real numbers.

Natural number set = {1,2,3...},

Whole number set= {0,1,2,3...},

Integers = { ....-2, -1, 0, 1, 2, ....},

Rational numbers = { Integers, Decimals, Fractions},

Irrational numbers = { non fractional numbers eg: π, etc.}

Real = { Natural, Whole, Integers, Rational, Irrational }.

Any number which is a fraction resulting in a decimal value is Rational Number sets.

3.5 is a decimal number so it can be Rational Number sets also Real Number sets.

 She earns $252.00 a week because if she works 6 hrs weekday that's mean 5 days then she works a total of 30 hrs.  (5 x 6 = 30hrs).Then, she gets pay $6 an hour it is equal to  $180.00. Then, she works 8 hrs total on the weekend. That means 2 days 4 hrs each. So, if she gets pay $9 an hour it is equal to $72.00. So, she earns $252.00 a week because $180.00 + $72.00 = $252.00.