One of them is 13 and the other is 28
Answer:
Her error was multiplying -3 and -4 which gives +12 but she wrote -12 instead
Step-by-step explanation:
Mariana workings:
-3(2x - 4) = -12
-6x - 12 = -12
Her error was multiplying -3 and -4 which gives +12 but she wrote -12 instead
-6x = 0
x=0
Correct workings:
-3(2x - 4) = -12
-6x + 12 = - 12
-6x = -12 - 12
-6x = -24
x = -24/-6
x = 4
Answer:
2 years
Step-by-step explanation:
$400 x 14% = $56
$56 x 2 = $112
Answer:
D
Step-by-step explanation:
= 
Factor out 2 on the numerator and 2x on the denominator.
= 
Cancel the factor (x + 2) on the numerator/ denominator
= 
← cancel the 2 on numerator/ denominator
= 
: x ≠ 0
I believe the ratio in simplest form is 1.3 to 0.7.
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