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3 years ago

1) Mrs Tan is 43 years old and her daughter is 17 years old. How many years ago was Mrs Tan 3 times as old as her daughter?

Mathematics

1 answer:

Leona [35]3 years ago

8 0

Answer:

No 1

Here,

Let X be age of daughter

and 3X be age of father

Now,x+17+3 = 20 age

and 3x+43-20 = 7point9x

Step-by-step explanation:

So,

20÷7point9 = 2point8 years ago

Hence,

age of father = 48÷2point8 = 21point5 years

age of daughter = 20÷2point8 = 10 years

so, before 2point8 years ago father was as old as his daughter

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Step-by-step explanation:

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2 years ago

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Answer:

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2 years ago

Read 2 more answers

M³×n=189 Find m and n

Flura [38]

Answer:

m=3, n = 7

Step-by-step explanation:

Assuming m and n are integers, the following are the possible values of m and n

Let m = 1, then m³ = 1 and n= 189

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1 year ago

Please make this quick

AveGali [126]

Answer:

Step-by-step explanation:

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3 years ago

Use the triangle below to find cos V.

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Answer:

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Step-by-step explanation:

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The attached triangle

Required

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$cos\theta = \frac{Adjacent}{Hypotenuse}$

In this case:

$cos V= \frac{TV}{UV}$

Where

$TV = 6$

and

$UV^2 = TV^2 + TU^2$ -- Pythagoras

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$UV = \sqrt{261$

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