Answer:
x = 2.5
or
x = 
Step-by-step explanation:
18x + 6 + 4 = 55
18x + 10 = 55
18x = 55 - 10
18x = 45
x = 2.5
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Answer:
y=2x*6
Step-by-step explanation:
Answer:
Infinitely Many Solutions
Step-by-step explanation:

Answer:
The explanation is given below.
Step-by-step explanation:
Given for a triangle to be obtuse only one of the angles must be shown to be obtuse but for a triangle to be acute all three angles must be shown to be acute.
According to Pythagoras theorem for a right angled triangle which has one angle of 90° rest of two are acute.

Hence, by Pythagorean inequality

which gives the triangle is acute.
Hence, one acute angle with the Pythagorean inequalities theorem shows that the triangle is acute.
Answer: Tom's age is 40 and Bob's age is 38.
To answer this problem, you must write the 2 equations given in the directions.
They could be:
t - b = 2 and b = 3t - 82
Input the second equation into the first equation at the variable be and solve.
t - (3t - 82) = 2
t - 3t + 82 = 2
-2t + 82 = 2
-2t = -80
t = 40
So Tom is 40. And since t - b = 2, Bob must be 38.