Answer:
The equation is b = -a
Step-by-step explanation:
Given,
The number b varies directly with the number a,
That is, we can write,
b ∝ a
⇒ b = ka
Where k is the constant of proportionality,
Given, if b = 2 then a = -2,
By substituting the value,
2 = k(-2)
⇒ k = -1
Hence, the equation that represents the direct variation between a and b is,
b = -a
Answer:
$768.00
Step-by-step explanation:
Maddie purchased a sofa.
To pay for the sofa, she made a payment of 64 dollars each month for one year.
She paid $64 for 12 months.
The cost of the sofa = 64 × 12
= $768.00
Cost of the sofa would be $768.00.
Answer:
Step-by-step explanation:
Perimeter is the sum of all the sides
Answer:
P = 10y - 3
Step-by-step explanation:
Perimeter is dettermined by adding all the outside surfaces information together.
Watch:
First, set up:
(3y - 2) + (2y + 2) + (2y - 2) + (y) + (2y - 1)
Now add the common alikes.
(3y + 2y + 2y + y + 2y) = 10y
(-2 + 2 - 2 - 1) = -3
Now you have your perimeter.
P = 10y - 3
Answer:
(-1,-1)
Step-by-step explanation:
Step 1 identify coordinates of A
A is located at ( -3 , -3 )
Step 2 apply dilation by multiplying the x and y values of coordinate A by the scale factor
Given:
scale factor = 1/3
Coordinates of A: ( -3 , -3 )
* Multiply the x and y values by 1/3 *
( -3 * 1/3 , -3 * 1/3 ) -------> ( -1 , -1 )
The new coordinates would be (-1,-1)
multiply the coordinates of A by the scale factor given