It should be 24.5%. If you divide 98 by 400 it's .245. Then multiply it by 100, you get 24.5%.
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First, set the second equation with y as the isolated variable. To do this, subtract 4 from both sides to get

Now that you know the value of y, put that expression in for y in the first equation to get

Then, simplify by adding the x terms together to get

add 4 on both sides to isolate the x terms to get

then divide 6 from both sides to get

Using that x value, plug it into one of the equations as x to find y ( I will use y=3x-4)

x=1 and y=-1 is the answer
Well 3+4=7 so you have two different drawings which removes one marble if you draw and then you have 6. so first, you have 3/7 green and 4/7 to draw black marble. After then, you have either a 3/7 green and 3/7 black chance or a 2/7 green and 4/7 black chance to pull a color. you're more likely to pull a black marble first, then after getting a black marble you have a 50/50 chance of pulling either back or green.
Answer:
j / 9 = 5
j = 45
Step-by-step explanation:
j / 9 = 5
Multiply each side by 9
j/9 * 9 = 5*9
j = 45