a man is twice as old as his son.Five years ago the ratio of their ages was 9:4.Find the sum of their ages​

Answers

Answer 1

Answer:

75years

Explanation:

Let the Father's age be represented by 2x

Let the Son's age be represented by x

Five years ago;

Man's age will be = 2x - 5

Son's age will be = x - 5

If the ratio of their ages five years ago was 9:4, then;

2x - 5/x-5 = 9/4

4(2x - 5) = 9(x - 5)

8x - 20 = 9x - 45

- Collect like terms

-20 + 45 = 9x - 8x

25 = x

Hence, the son's age = 25 years

If x = 25, the father's age (2x) will be 2 × 25 = 50years

The sum of their ages will be = 25years + 50years = 75years


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Answer:

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Explanation:

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Answer:

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Answer:

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Answer:

They interact by the upper mantle transferring energy by conduction to the core  assisting in the softening of the rock layer which leads to radiation.

Explanation:

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Answers

i...

ask your parents....

plz...

not infront of many peoole on brainly..

Can someone help me with this question? Will mark BRAINLIEST (But please dont ask)

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Answers

Answer:

1. We commonly know that albinism is a type 1 genetic disorder which is inherently derived from a gene mutation on the X chromosome

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3. Hence it abnormally mutates the X chromosome which allows it the characteristic of a genetic disorder

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Has the biotechnology of bread changed since it was first created? Why or why not?

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Which best describes the difference between wave A and wave B? O Wave A has a greater pitch and frequency. O Wave B has a greater pitch and frequency. O Wave A has a greater pitch but lower frequency. O Wave B has a lower pitch but greater frequency.​

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May I see the diagram

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Answers

Answer:

the sun

Explanation:

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hope this helps

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Answers

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Viruses are organisms that are living and nonliving as they reproduce when once inside the host cell and have the RNA or the DNA as the genetic material inside their capsids.

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Therefore, the virus is a non-living with genetic material.

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Help please

Answers

Answer:

its A/F

Explanation:

A sample of human DNA is made up of approximately 30% adenine. The quantity of cytosine found in human DNA will be  20%. The correct option is B.

What is DNA base pairing?

DNA base pairing is the pairing or joining of DNA bases to each other with hydrogen bonds. There are four types of bases present in DNA. They are adenine, thymine, cytosine, and guanine.

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Explanation:

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Answers

Answer:

process

hope it helps

thanks for the points

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Answers

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Explanation:

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Answer:

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Explanation:

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Answers

Answer:

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Explanation:

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Explanation:

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Basically what she or he said. I don’t like assuming genders.

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Explanation:

Answer:

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B. total time and total distance

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Answer:

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Explanation:

Answer: pick one

try this,

Permafrost is a permanently frozen layer on or under Earth's surface. It consists of soil, gravel, and sand, usually bound together by ice. ... Permafrost covers approximately 22.8 million square kilometers (about 8.8 million square miles) in Earth's Northern Hemisphere. Frozen ground is not always the same as permafrost.

or try this,

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hope it helps, please mark me brainliest, please

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Answer:

Please Mark as Brainliest

Explanation:

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Answers

Answer:

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Answers

Answer:

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Explanation:

you can also just look this one up on googlo

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Answer:

hih

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what that means what ur talking bout

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What I'm confused

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Answers

It would be C. Because forest uses more land

Can i have some help please​

Answers

Answer:

genotype:-

25% (DD)

50% (Dd)

25% (dd)

phenotypes:-

50%

50%

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Answers

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Answers

Answer:

Oxygen, Carbon dioxide

Explanation:

Its a fact

The other answer is incorrect, the products of photosynthesis are oxygen and glucose (O2/C6H12O6)Carbon dioxide is the reactant along with water and light.
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