Answer:
x = -7
Step-by-step explanation:
First, expand right side
5 - x = 3x + 33
Move x to one side and constants to other side
5 - 33 = 3x + x
-28 = 4x
Divide both sides by 4
x= -7
Answer:
180 min
Step-by-step explanation:
The first thing is to get the number of days in two weeks that he would read the book, since he only does it when he goes to school. School goes from Monday to Friday, that is to say 5 days, how two is two weeks would be a total of 10 days. Mathematically, it would be the equation, where X would be the number of minutes inside the parentheses and the minutes read before and after school:
X = 10 * (10 + 8)
Solving:
X = 180
In other words, in two weeks he has read a total of 180 minutes.
Answer:
x = 3.67
Step-by-step explanation:
Simplify both expressions
14x - 18 = 5x + 15
Subtract the bigger (n)x by the smaller
14x - 5x = 9x
Plus the smallest by itself, giving you:
9x - 18 = 15
+18 +18
9x = 33
Simplify ( divided by 3 )
3x = 11
x = 3.67
Answer:
d = 10/72
Step-by-step explanation:
c and d vary inversely
c = k/d
Where,
k = constant of proportionality
d = 2/9 when c = 5
c = k/d
5 = k ÷ 2/9
5 = k × 9/2
5 = 9k/2
Cross product
5*2 = 9k
10 = 9k
k = 10/9
c = k/d
c = 10/9 ÷ d
c = 10/9 × 1/d
c = 10/9d
find d when c = 8
c = 10/9d
8 = 10/9d
Cross product
8*9d = 10
72d = 10
d = 10/72
The Answer is 2x + Y - 6 =0
