Answer:
Step-by-step explanation:
You add each coeficient with the same type of incognita:
Answer:
the top 2 and the left bottom corner
Step-by-step explanation:
the first one in the first row is a reflection
the second one in the first row is a rotation
the one on the left bottom corner just moved a unit
Answer:
c This is the direct variation
Step-by-step explanation:
The equation for direct variation is y= kx
Solving this for k
y/x =k
So y/x must be a constant
a. 9/3 =3
2/7 does not =3 so this is not a direct variation
b 1/2 = .5
-3/6 = -.5
This is not the same so this is not a direct variation
c. 27/9 =3
18/6 =3
9/3 =3
This is a direct variation with a constant of 3
d 5/-7 = -5/7
1/-3 = -1/3
This is not the same so this is not a direct variation
Answer:
dont mind me
Step-by-step explanation:
Answer:
1) The 15%-off coupon is $3.
2) The cost of the meal after the discount is $17.
3) The final cost of the meal with taxes is $18.19.
Step:
1) To find the discount, try to find the amount of 1%, (20÷100 x 15 = 3)
2) To find the cost of the meal after discount (20-3 = 17)
3) To find the final cost, try find the taxes amount (17÷100 x 7 + 17 = 18.19)