0.00869565217
There you go.
Answer:
C. 10 000
Step-by-step explanation:
If we called:
x = children who have been vacinated against rubella only
2x = children who have been vaccinated against mumps
y = children who have been vaccinated agains both
Children who have been vaccinated against mumps only = x - y
And we know that y = 2*(x-y)
=> 2y = 3x
y = 5000
There fore x = 7500
The number of children who have been vaccinated against rubella
= 2x - y = 2*7500 - 5000 = 15 000 - 5000 = 10 000
10x-61/12 is the difference of (7x-
) - (-3x +
).
<h3>What is Expression?</h3>
An expression is combination of variables, numbers and operators.
The given expression is (7x-
) - (-3x +
)
7x-
+3x- 
7x-20/3+3x-19/4
Add the variable terms and constant terms.
10x-20/3-19/4
The LCM of 3 and 4 is 12/
10x-4-57/12
10x-61/12
Hence, 10x-61/12 is the difference of (7x-
) - (-3x +
).
To learn more on Expressions click:
brainly.com/question/14083225
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