Answer:
y is 6.5 because it's kind of a ratio, you just need to find out what number to divide them by or multiply them by in this case, it was 13÷2 =6.5
Answer: it is 49 or -49
Step-by-step explanation:
if you divide 49 by 7 it comes out to seven because 7 times 7 is 49.
Recall that

There are three cases to consider:
(1) When

, we have

and

, so

(2) When

and

, we get

and

, so

(3) When

, we have

and

, so

So
Answer:
The answer is k = 4.
Step-by-step explanation:
Given:
Y = 8 and X = 2.
Now, to solve direct variation.
direct with
.
Now, using equation to solve direct variation:


Dividing both sides by 2 we get:
.
Therefore, the answer is k = 4.
1.7a + 0.3a = 0.8;
(1.7 + 0.3)a = 0.8;
2 x a = 0.8;
a = 0.8 ÷2;
a = 0.4;