Answer:
15 yrs. old
Step-by-step explanation:
x+45=4x 45=3x 15=x
multiply the ones in bracket by the L
T = 7× L + L × RS
T = 7L + LRS
making S the subject by transferring 7L to the left hand side of the equation.
thus
T - 7L = LRS
dividing through by LR


Two angles are supplementary to each other if they are congruent. One angle in a linear pair is a right angle if the other angle is the right angle. When one of the angles is a right angle, the two angles become congruent and neighboring.
I think that you forgot to give the picture of the circle along with the question. I am answering the question based on my research and knowledge.
The total unshaded part of the circle = (3/5 + 1/4)
= (12 + 5)/20
= 17/20
Now, the full circle can be considered = 1
Then
The total shaded part of the circle = 1 - (17/20)
= (20 - 17)/20
= 3/20
I hope that this is the answer that has actually come to your desired help.