The total scores of the x students from class A can be calculated by multiplying x and the average which is equal to 85. That is 85x.
In similar manner, we are able to find for the total scores of the students from Class B. That would be, 90y.
Combining the scores, the new average then becomes 88. This is equal to,
(85x + 90y) / (x + y ) = 88
Cross-multiplying,
85x + 90y = 88x + 88y
Combine all the x's and y's in each side of the equation.
85x - 88x = 88y - 90y
Combining terms,
-3x = -2y
The ratio is obtained through the step below,
-3x/-3y = -2y/-3y
x/y = 2/3
Thus, the ratio is 2/3.
$23,500.00 × (0.011) = $258.50 of ownership tax
Answer:
A. 
Step-by-step explanation:
It is A because the puppy is <em>at least </em>15 pounds and it means the puppy could be greater or equal to 15 pounds.
Answer:
5 is the number
Step-by-step explanation:
5 twice is 10 and 9 less than 10 is 1 and 1 is less than 2
Answer:Height of the kite is 50 square root of 3
Step-by-step explanation:
i took the test
