B) y= 2(x + 5)
C) x - 3y = 0
D) x= y + 3
Answer:
C
Step-by-step explanation:
Direct variation is a special case of first order equations; in both cases, the input is multiplied by a constant which we call the "slope" or "constant of variation." However, no direct variation equation includes a constant ("y-intercept"). So, if a given equation does have a y-intersect, that equation does not represent direct variation; if it does NOT have a y-intercept, that equation represents direct variation.
A) involves a constant term, -2; NOT direct variation
B) involves a constant term, 10; NOT direct variation
C) Here 3y = x, or y = x/3, involves no constant term, so Does represent direct variation
D) involves a constant term -3; NOT direct variation
10/2= a/a-9
Note: I need this NOW!!!
10/2= a/a-9
10/2=a/a+-9
Multiply all terms by a and cancel
10a/2 = a+-9a
Simplify both sides of the equation
5a= -8a
Add 8a to both sides
5a+8a= -8a+8a
13a=0
Divide both sides by 13
13a/13=0/13
a= 0
Answer : No solution
I hope that's help !
For 25 cans of coke, there will be 15 cans of sprite.
The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
Given is a cooler filled with cans of soda such that for every 5 cans of coke, there are 3 cans of sprite.
For every 5 cans of coke there are 3 cans of sprite.
Then, for every 1 can of coke there will be 3/5 cans of sprite.
Hence, for 25 cans of coke, there will be (3/5 x 25) = 15 cans of sprite.
Therefore, for 25 cans of coke, there will be 15 cans of sprite.
To solve more questions on Unitary method, visit the link below-
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Yes, rhombus is always a quadrilateral. We know that rhombus is a parallelogram and in order for a shape to be a parallelogram, it needs to have four sides and angles.