12:15 does not belong, since that is a ratio of 4:5, whilst the others are all 3:4.
Answer:
8+12x
Step-by-step explanation:
Answer:
8-6i
Step-by-step explanation:
complex number in standard form will be in the form of a+bi
(-2 − 2i) + (10 − 4i) , open parenthesis
-2- 2i +10 -4i, group like terms
-2+10 -2i -4i, combine like terms
8 - 6i
Answer:
4p+3
Step-by-step explanation:
Because 4 has the variable p next to it, 4 can not be the same as 6 or 3 because they are whole numbers. So the only thing you can do here is 6-3, which is 3.
15x = 500-50
15x = 450
x = 450/15
x =30
Thus, x is equal to 30.