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
Answer:
$13,200
Step-by-step explanation:
Multiply the original cost by .04 and 12 years
(original cost)(rate in decimal form)(time)
Answer: A is -8
Step-by-step explanation:
-6 times 6 = -36 then you would do -6 times -a = 6a then you would have
-36 + 6a = -84 then you would add 36 to both sides to get -48 then you would divided -48 by 6 to get -8
Answer:
x° = 60
Step-by-step explanation:
Vertically opposite angles are congruent, thus
x° = 60
