Answer:
Step-by-step explanation:
y -5x = 2
10x -3y =9
substitute x for 3/5 and y for -1
-1 -(5*3/5) = 2
(10*3/5) -3(-1) =9
simplify :
-1 -3 =2
6+3 =9
-4 =2 Not true
9=9 True
Conclusion: the point (3/5, -1) is not a solution to the given system of equations
Answer:
<h2>Q9. C.</h2><h2>Q10. B.</h2>
Step-by-step explanation:
Seems to be a typo:
If you meant to say just "an article" then it would be 1/3 of the article per minute.
If it is supposed to say "half of an article" he would have read 1/6 of the article per minute. Hope this helps!
D is integer and rest r rational I guess
Answer:
x = 15
Step-by-step explanation:
given that y varies directly with x
mathematically we can express this as
y = k x , where k is a constant
step 1: find k
given x = 3 and y = 21
y = k x
21 = k (3)
k = 7
hence the equation becomes
y = 7 x
when y = 105,
105 = 7x
x = 105 / 7 = 15
