**Remember this rule: the sum of a triangle's angle measurements always = 180
So 2x + 3x + 4x = 180
9x = 180
9x/9 = 180/9
x = 20
A) 20
Answer:
8
Step-by-step explanation:
You must find a common denominator
Because 12 is four times the integer three, you have to multiply two by four as well, to have a common denominator.
so (2/3)*4 = 8/12
This means that 8/12 = x/12, giving you your answer.
Answer:
n=15/2 or n=7.5. (their two versions of the same number. one in fraction form the other in decimal form.)
Step-by-step explanation:
(n represents 'a number' in this equasion)
3n=5n-15
3n=5n-15
3n-5n=-15 (isolate the variale)
-2n=-15
n=15/2 (a negative divided by a negative is a positive)
n=7.5
QUESTION 1
Given that just over 3 quarters of Canadians live within a
short distance of the USA border.
To write the fraction, 3 quarters as a decimal.
1 quarter = 1/4
3 quarters = 3 (1/4)
= 3/4
= 0.75
Therefore, just over 0.75 of Canadians live within a short
distance of the USA border.
QUESTION 2
Given,
Amersham station is at 482 ft above sea level
Waterloo station is at 70 ft below sea level
Let the seal level be point 0
Position of Amersham station is at +482ft
Position of Waterloo station is at -70 ft
Height difference = +482 – (-70)
Since minus times minus equals plus
Height difference = 482 + 70
Height difference = 552ft