Let's put these as improper fractions.
30 = 60/2. add the 1/2 to get 61/2
13 = 52/4. add the 3/4 to get 55/4
To add/subtract fractions, they must have the same denominator. (bottom no.)
If we multiply the top and bottom of a fraction by something, it stays equal.
We can conclude that 61/2 = 122/4. (bottom multilpies by 2, so does the top)
Now that we have a common denominator, we can subtract.
The "fourths" just sort of acts like a unit. Subtract 55 from 122 to get
.
We can convert this to an improper fraction simply by dividing 67 by 4.
This leaves us with 16, and a remainder of 3. Our answer is
Answer:
1/28
Step-by-step explanation:
The expression is 7x-4y
Replace x by 1/4 and y by 3/7
- 7x-4y
- 7*(
) - 4*(
) multiply 1 by 7 and 4 by 3 
- 
multiply 7/4 by 7 and 12/7 ny 4 to get the same denominator 
- 1/28
7/12
So we first need to add up all the marbles so there are 12 marbles to pick from so we know that there is 7 orange marbles and since there are only three colors and two of them we don’t want pick there is a 7/12 chance of getting a marble that isn’t yellow or blue and since we can’t simplify any further that’s the answer
I'm not sure if those numbers are negatives or thats just a hyphen but:
N(-5/8)=-0.40
Division is always the opposite of multiplication
-0.40/(-5/8)=0.64
N=0.64
Answer:
g=153
Step-by-step explanation:
i hope this helped...
