Answer:
The Area of Δ ABC = 219.13
Step-by-step explanation:
<em>The hard part about this problem is finding the area without the height</em>
The formula to do this is Area = 
A, B, C represent the sides
S represents
(A + B + C)
In this equation, we will make the base be A, and the other two sides will be B and C
<u>Sides B and C are the same length</u> because they meet at a 90° angle
Lets plug the numbers into the variables
A = 28
B= 21
C= 21
<u>Remember:</u> S represents
(A + B + C)
S =
(28 + 21 + 21)
S =
(70)
S = 35
<em>Lets plug the numbers into the Area Formula now!</em>
Area = 
According to the order of operations, we need to do the calculations in parentheses <u>first</u>
35 - 28 = 7
35 - 21 = 14
35 - 21 = 14
14 x 14 x 7 = 1372
1372 x 35 = 48020
= 219.13
The Area of Δ ABC = 219.13
We always start from right side in order of operation in any equation
we can set up equation as
step-1:
x divided by three
we can write as

step-2:
six more than x divided by three
so, we get

step-3:
y is six more than x divided by three
so, we get

and this is in y=mx+b form
so, we have
...............Answer
19.47 is the answer. 29.5 * .66 or 66% is 19.47
Answer: it would take her 15 hours to read 400 pages
Step-by-step explanation: 400 devided by 80 is 5 and 5 x 3 = 15 hours
The value of x from the given equation is 6
<h3>Solving linear equation</h3>
Linear equation are equation that has a leading degree of 1. A linear expression is given as y =ax + b
Given the linear equation below;
7x = 42
We are to determine the value of x
Divide both sides by 7
7x/7 = 42/7
x = 6
Hence the value of x from the given equation is 6
Learn more on linear equation here: brainly.com/question/2030026
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