Answer:
1/12
Step-by-step explanation:
the question is asking to subtract a from b, which is the same as asking to find a-b
answer = 5/6 - 3/4
= 10/12 - 9/12 (lowest common multiple of 6 and 4 is 12)
= 1/12
if you dont know how to find lowest common multiple by prime factorisation, you can make the common denominator 6x4 instead which is 24, so
5/6 - 3/4 = 20/24 - 18/24
=2/24 = 1/12
4/3
40/30
60/45
Simply multiply or divide both the 20 and the 15 to get an equivalent ratio.
Answer:
x = -4
Step-by-step explanation:
3x-2(6x-3)=42
Distribute
3x -12x+6 = 42
Combine like terms
-9x+6 = 42
Subtract 6 from each side
-9x+6-6 = 42-6
-9x = 36
Divide each side by -9
-9x/-9 = 36/-9
x = -4
Adam will have to run 26 miles per week. 30% of 20 is 6. (6+20=26)
<u>Answer:</u>
45
<u>Step-by-step explanation:</u>
We are given an equation <em>x - y = 30 </em>which we are to solve for x when the value of y is 15.
To solve this linear equation for x, we just need to substitute the given value of y into the equation to get the value of x.
x - y = 30
x - 15 = 30
x = 30 + 15
x = 45
Therefore, the value of x is 45 when y = 30.
Unfortunately this value is not in the given options but 45 is the correct answer.