Step-by-step explanation:
Non examples are:
y= 1/2 x - 3
y = x - 2
x = 6y
Examples are:
5x - 3y = 9
2x + 3y = 0
x + y = 1
Answer:
a. x = 7
b. x = 36/5
Step-by-step explanation:
<u>Points to remember</u>
The ratio of of corresponding sides of similar triangles are equal.
<u>a). To find the value of x</u>
From the figure 1 we get two similar triangles, ΔABC and ADE
We can write,
AB/AD = AC/AE
3/6 = x/(x + 7)
3(x + 7) = 6 * x
3x + 21 = 6x
6x - 3x = 21
3x = 21
x = 21/3 = 7
<u>b). To find the value of x</u>
From the figure b we get
ΔABC ~ ΔEDF
AB/DE = BC/DF
4/5 = x/9
x = (4 * 9)/5 = 36/5
The opposite of negative 75 over 12? The answer would be negative 16
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Step-by-step explanation:
5x +8/5x-1=4/9
Cross mutiply
9(5x +8)=4(5x -1)
=45x +72=20x-4
Collect like terms
45x-20x = -4-72
25x= -76
x= -76/25
