Mathematics: Tinky Winky is 2 years younger than Laa Laa. If the product of Tinky s and Laa Laa s ages is equal to 1 less than 5 times the sum of their ages, how old is Tinky?

Tinky Winky is 2 years younger than Laa Laa. If the

averyiodonnell

11.02.2022

Solution:-

Let

Tinky's age=x

Laa's age=x+2

According to the question

$\qquad\quad {:}\longmapsto\sf 5 (x+x+2)-1=x (x+2)$

$\qquad\quad {:}\longmapsto\sf 5(2x+2)-1=x^2+2x$

$\qquad\quad {:}\longmapsto\sf 10x+5-1=x^2+2x$

$\qquad\quad {:}\longmapsto\sf 10x+4=x^2+2x$

$\qquad\quad {:}\longmapsto\sf 10x-2x+4=x^2$

$\qquad\quad {:}\longmapsto\sf x^2=8x+4$

$\qquad\quad {:}\longmapsto\sf x^2-8x-4=0$

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taralynnn8870

09.05.2021

$\frac{3}{8}$

Step-by-step explanation:

if your on question question 5 (04.03 LC)

3 over 8 should be the answer.

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