Let's evaluate the equation:
(1/4 + 5/8) = 2/8 + 5/8 = 7/8
(1/2 + 3/4) = 4/8 + 6/8 = 10/8 = 5/4
Add the two expressions:
(7/8) + (5/4) = 7/8 + 10/8 = 17/8
So, the equation evaluates to 17/8.
Therefore, the correct answer is 17/8.
Let the product of two real numbers = ab
One number =9
9a=72
A= 72/9
A=8
Let's solve the equation:
(3/2)x - 5/2 = 1/2
Add 5/2 to both sides:
(3/2)x = 1/2 + 5/2
(3/2)x = 6/2
(3/2)x = 3
Multiply both sides by 2/3:
x = 3 × (2/3)
x = 2
Answer:
D
if 30% of 80/y =24
24y = (30 x 80)/100 equation #1y = (30 x 80)/ (24 x 100) =1
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VU CBT FIA PAPER 25-12-2021
Let's simplify the equation:
(-16k) + (-k) - 15k - (-11k) - (-17k) = 1
Combine like terms:
-16k - k - 15k + 11k + 17k = 1
-4k = 1
Divide by -4:
k = -1/4
Let's denote the number as x.
Given that 2/3 of x decreases its 4/5 by 8:
(2/3)x = (4/5)x - 8
To solve for x, let's multiply the entire equation by 15 (the least common multiple of 3 and 5) to eliminate the fractions:
10x = 12x - 120
Subtract 10x from both sides:
0 = 2x - 120
Add 120 to both sides:
120 = 2x
Divide both sides by 2:
x = 60
We know A + B = 12.
We also know A + B + C = 8.
Substitute the value of A + B into the second equation: 12 + C = 8.
Solve for C: C = 8 - 12 = -4.
Let "x" be the number.
Three-fourths of the number is (3/4)x.
When we multiply the number by three-fourths of itself,
we get: x * (3/4)x = 10700.
This simplifies to (3/4)x² = 10700.
Solving for x, we get x = 70.
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