D. 133*1.285=171 pennies in the jar
4x - 2y = 22
Start by adding 2y to both sides to cancel out the -2y
4x = 22 + 2y
Now you can divide by 4
x = 22/4 + 2y/4
Reduce all the fractions to get your answer, which is
Answer:
49 red marbles
Step-by-step explanation:
We should first make 5/12 have a base of 84, so that'll be
(5*7)/(12*7)=35/84. So we have 35 blue marbles and all the rest are red, so 84-35=49
DUBS
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Make the whole number as an improper fraction. example, 2 7/12 would be 31/12 and then you can multiply 8/1 x 31/12
