Question

the sum of their ages will be 66. Find their present ages?
62. In the following parallelograms find the missing values:
X
45
3x
5 + 2x
A
B
N
17 of 18
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Answer 1

Answer:

x+45+3x+5+2x+a+b+n+17 of 18

so the answer of this is... in the explanation

Step-by-step explanation:

u have to first add all the variables

like:

x+x+a+b+x...etc.

so like 2x

1a

b1

and so on..

then put pythogoras theorum

Answer 2

Answer:

Let their present ages be x and 20−x yrs respectively.

Four years ago, their ages would be (x-4) and (16-x) yrs respectively.

(x−4)(16−x)=48

16x−x

2

−64+4x=48

x

2

−20x+112=0

b

2

−4ac=−48

Since the discriminant <0, the roots would be imaginary.

Hence, such a situation is not possible.

Video Explanation