20 + (0.4 × 15) + 12 + (0.4 × 10) = 20 + 6 + 12 + 4 = 42

20 + 15 + 12 + 10 = 57

57 - 42 = 15

15 ÷ 57 × 100 = 1500 ÷ 57 = 26.3

Ans = $42.00, 26% off ...

6 0

3 years ago

-3(3x+8)>-9x+4 always or never true?

labwork [276]

-3(3x+8)>-9x+4
-9+8>-9x+4
+9x +9x
8>4

Answer:Always

6 0

3 years ago

Two different golf country clubs have the following membership fees and monthly

dolphi86 [110]

You have to be a member for three months for both clubs to have the same cost

6 0

3 years ago

What is 7/9 x 21/10=

fiasKO [112]

Answer:

1 19/30

Step-by-step explanation:

Just multiply and cross simplify

7/9 x 21/10

9 and 21 can be simplified to 3/7

7/3 x 7/10

Multiply from left to right

49/30

1 19/30

7 0

3 years ago