All categories

3 years ago

A man s five times as old as his son.in three years time,the product of their ages will be 380.

Mathematics

1 answer:

Mademuasel [1]3 years ago

6 0

Answer:

son age: X

man_age= 5X

in 3 years: we have: (man_age+3)(X+3)=380

we can replace the man age by 5X and we get :

(5X+3)(X+3)=380

it is a quadratic equation with 2 solutions. One negative and 7

The solution is thus 7, since age can not be negative.

The son is thus 7 and the dad 5 times more 35

Step-by-step explanation:

You might be interested in

Which equation is equivalent to 5x – 4y = 8?

aalyn [17]

Answer:

you got it right

Step-by-step explanation:

you mathaway to get the answer

6 0

3 years ago

16 Find the value of x in the diagram below.

Arisa [49]

Answer:

fyni

Step-by-step explanation:

6 0

3 years ago

Halen ate 1 7/8 doughnuts for breakfast if Lucy ate 2 times as many as Helen how many doughnuts did Lucy eat

loris [4]

Answer:

1.75

Step-by-step explanation

Perhaps, 1 7/8 is a bit of an Improper fraction, therefore Multiply the side number of this Improper fraction (1x7) Witch will give you 7/8 times that against 2 and you will get 1.75. (Forget the last period by the number.)

8 0

2 years ago

C) What are zeros of f(x) = 3x2 - 12x - 36

Margarita [4]

Answer:

Zeros Calculator. The zeros of a polynomial equation are the solutions of the function f(x) = 0. A value of x that makes the equation equal to 0 is termed as zeros. It can also be said as the roots of the polynomial equation. Find the zeros of an equation using this calculator.

Step-by-step explanation:

Please mark me the brainiest if I got it right

7 0

3 years ago

Read 2 more answers

Eleanor placed some marbles in a bag for an experiment. She reaches into the bag and grabs a marble. Eleanor writes down the col

rodikova [14]

Answer:

Hi I have this same question but I'm torn between certain and very likely it is on of those options.

Step-by-step explanation:

6 0

3 years ago