Answer:
426 cm^2
Step-by-step explanation:
Let, the area of the given figure be A
Let's imagine that the rectangle (at the bottom right) is present.
Then, A = Area of trapezium - Area of rectangle
= { 1/2 * ( 18 + (20+4) ) * ( 13+9 ) } - ( 4 * 9 )
= 462 - 36
= 426
[If there's any mistake, please inform me]
9514 1404 393
Explanation:
From your knowledge of the world, you know that ...
- the cost of multiple items is the sum of their individual costs
- multiplication can be used for repeated addition
- utility fees are the sum of fixed fees and usage-related fees
- for a phone plan, text message costs are a usage-related fee
The problem statement asks for the cost of a single text message. For the purpose of finding that value, it is convenient to represent it using the variable <em>t</em>. The problem statement says Eric was billed for 450 text messages, so we expect his usage-related fee to be 450t, the sum of the costs of 450 messages--using multiplication for the repeated sum.
The problem statement says Eric was billed 12.50 for fixed fees. So, we expect Eric's total bill to be ...
fixed fees + usage-related fees = 12.50 + 450t
The problem statement says Eric's total bill was 35.00, so we assume that is the sum of the above-listed fees. That is, the two ways to express Eric's total bill are equal.
12.50 +450t = 35.00
<h3>
Answer: 21</h3>
Explanation:
Since line L is parallel to line RA, this means the pieces formed by line L cutting into the triangle are proportional.
That means we can set up the proportion below to solve for d
14/d = 24/36
14*36 = d*24
504 = 24d
24d = 504
d = 504/24
d = 21
Other equations are possible to set up, but you should get the same result regardless.
