1
2
) (25.5)(30) (
1
5
) = 76.5cm²
Maria solved the area problem below. What was her error?
She found the perimeter.
She forgot to square the scale factor.
She forgot to multiply by One-half for the area of the triangle.
She should have divided by the square of the scale factor.
Answer:
b
Step-by-step explanation:
Answer:
o my quizlet page its b
Step-by-step explanation:
The possible divisors are 10, 20 and 30, the possible quotients are 420, 210 and 140.
The division is one of the basic arithmetic operations in math in which a larger number is broken down into smaller groups having the same number of items.
Here, divide 4200 by a multiple of 10 so that the quotient is also a multiple of 10.
Here, 4200/10 =420
4200/20 = 210
4200/30=140
Therefore, the possible divisors are 10, 20 and 30, the possible quotients are 420, 210 and 140.
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4,200 times 10 is 42,000
website host $32. What was the final selling price of the antique?
A. $68.
B. $600.
C. $680.
D. $1,280.
The final sellingprice of the antique was $680.
The correct answer is option C.
An expression contains one or more terms with addition, subtraction, multiplication, and division.
We always combine the liketerms in an expression when we simplify.
We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.
Example:
1 + 3x + 4y = 7 is an expression.
3 + 4 is an expression.
2 x 4 + 6 x 7 – 9 is an expression.
33 + 77 – 88 is an expression.
We have,
Let's assume the final sellingprice of the antique to be x.
According to the given information,
Kyle had to pay the website host $15 plus 2.5% of the final sellingprice.
Now,
The totalamount Kyle had to pay.
= $15 + 0.025x.
It is given that Kyle had to pay $32, so we can set up the equation:
$15 + 0.025x = $32
Subtracting $15 from both sides:
0.025x = $17
Dividing both sides by 0.025:
x = $680
Therefore,
The final sellingprice of the antique was $680.
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6x+3>3x+30
The thing about solving inequalities, you just need to treat the symbol, which is the less than symbol in this case, as an equal sign.
So our problem becomes: 6x+3=3x+30
Now we solve this like a normal algebra problem.
First, get all the variables on one side. Since 3x is smaller than 6x, we'll get rid of that by subtracting it from each side.
3x+3=30 is what we end up with.
Now to get the variable alone and get rid of that constant. To do that, we are going to subtract 3 from each side.
We end up with 3x=27
Now, to get the 'x' alone, we need to divide each side by 3.
x=9 is what we end up.
BUT WE FORGOT TO DO SOMETHING
We started this as an inequality problem, so we need to end it as an inequality solution.
Since there wasn't any negatives we need to worry about (Which is something else entirely) we just need to transfer the symbol we started with down.
x>9
Any Questions?