Answer:
Son's age is 25.
Step-by-step explanation:
Let the Father's age be 2x.
Let the son's age be x.
Five years ago:
Man's age will be = 2x - 5
Son's age will be = x - 5
If the ratio of their ages five years ago was 9:4, then:
2x - 5/x-5 = 9/4
⇒ 4(2x - 5) = 9(x - 5)
⇒ 8x - 20 = 9x - 45
⇒ -20 + 45 = 9x - 8x
⇒ 25 = x
∴ x = 25
Hence, the son's age = 25 years
If x = 25, the father's age (2x) will be 2 × 25 = 50 years
Step-by-step explanation:
make it braintliest please
the length for each remaining side is 69 inches
Answer:
$42
Step-by-step explanation:
$8.00 : 1 pound
5 1/4 = 5.25
5.25 x 8 = $42
Here are some examples of how the Quadratic Formula works:
<span>Solve <span>x2 + 3x – 4 = 0</span></span>
This quadratic happens to factor:
x2 + 3x – 4 = (x + 4)(x – 1) = 0
.
Then, as expected, the solution is <span>x = –4, x = 1</span>.
