Answer:
15-5(4k-7)=50
<=> 15 - 20k + 35 = 50
<=> 50 - 20k = 50
<=> -20k = 0
<=> k=0
Step-by-step explanation:
Answer:
Assuming ur solving for n
2/7n=8/5
Sinc edits a proportion cross multiply
now you’d get 28=5n
Or if you solve
n= 28/5 or 5 3/5
Answer:
$297
Step-by-step explanation:
220 increase 35% =
220 × (1 + 35%) = 220 × (1 + 0.35) = 297
7(7y-4) (Hope this is correct!)
Answer:
A
Step-by-step explanation:
Recall that for a function to be valid, each input value of x must give us one and only one unique output value for y.
in this case we can see that one of the data sets is (3,-1)
which means that an input of 3 gave an output of -1
but we also see that another data set (3,1)
in this case an input of 3 gave an output of 1.
Because the same x input gives 2 different y outputs, this is not a function.
the answer is A
