Answer:
$3.70
Step-by-step explanation:
3.20+1.60=4.80
8.50-4.80=3.70
∠1 and ∠2 are supplementary angles. So ∠1 is 45 degrees. ∠7 is also 45 degrees because ∠1 and ∠7 are congruent
The correct option will be: C.
<em><u>Explanation</u></em>
The repeating decimal given is: which means 2.1111111111..........
Suppose, the given number 2.1111111111.......... as
Here the repeating digit is 1 . First, we need to move the decimal point after the repeating digit. So we can do that by multiplying both sides by 10. Thus....
Now subtracting the above two equations , we will get.....
So, the given repeating decimal be expressed in a fraction as
C. (22,16)
Y=x-6
16=22-6
16=16
Answer: angle ITU = 145 degrees
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Explanation:
Angle STU is the largest angle composed of the smaller angles STI and ITU.
In other words, the two smaller angles add up to the larger one.
(angle STI) + (angle ITU) = angle STU
( 20 ) + ( 12x+1 ) = 13x + 9
20+12x+1 = 13x+9
12x+21 = 13x+9
21-9 = 13x-12x
12 = x
x = 12
Using this x value, we find that,
angle ITU = 12x+1 = 12(12)+1 = 145 degrees
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As a side note,
angle STU = 13x+9 = 13(12)+9 = 165 degrees
This is confirmed with
(angle STI) + (angle ITU) = (20) + (145) = 165 = angle STU