Answer:
3.7%
Step-by-step explanation:
(p)principal=$3400
(t)time=9months=9÷12year=3÷4year
(i)interest=$94.50
(r)rate=?
we have
r%=i/(pt)
r%=94.50÷(3400×3÷4)
r÷100=94.50÷2550
r=0.37×100
r=3.7
required rate is 3/7%
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.
Answer:
3/-4
Step-by-step explanation:
There is no solution to this equation
X≠0
The answer would be 3=6 which is an invalid answer therefor an equation with no solution.
-5x+10x+3=5x+6
Combine like terms first
5x+3=5x+6
After this whether you make it 10x=9 that’s still an invalid answer but if you subtracted 5x on both sides it’d be 3=6
Therefore x≠0
Answer:
0.85
Step-by-step explanation:
