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Tasya [4]
3 years ago
5

A woman said to her to her son ," I was as old as you are now at the time of your birth". If the woman is 56 years old now, find

her son's age 9 years ago​
Mathematics
2 answers:
aniked [119]3 years ago
6 0

Answer:

i think he is 6 years and 2 months old

Step-by-step explanation:

grigory [225]3 years ago
3 0

Answer:

he son was 19

Step-by-step explanation:

if the son is the same age as his mom was when she gave birth to him you must divide the mothers ageby 2 so you get half her age which would be 28 then you subtract 9 and you get 19

56/2=28

28-9=19

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Any help on this?<br> Y=3x+7 <br> Y=x+1
denis23 [38]

Answer:

The answer is (x,y)=(-3,-2)

Step-by-step explanation:

I used the comparison method because I dont know what type of method you needed, sorry. The methods I know would be: the Comparison Method (what I used), the Substitution Method, Elimination Method,Inverse Matrix Method, Cramer's Rule, and the Gauss-Jordan Method.

You can also rewrite this equation to 3x-y=-7 and x-y=-1.

I'm sorry, I dont know what kind of answer you're looking for. I really hope this helps.

7 0
3 years ago
A study claims that the mean age of online dating service users is 40 years. Some researchers think this is not accurate and wan
Mademuasel [1]

Answer: H_0:\mu=40

H_0:\neq40

Step-by-step explanation:

  • A null hypothesis is a hypothesis where a researcher generally try to disprove, it says that there is no statistically significant relationship between the two variables .
  • An alternative hypothesis says that there is a statistical significance  between two variables.

Claim 1. : Mean age of online dating service users is 40 years.

i.e. \mu=40, since it has equals sign so we take this as null hypothesis.

Claim 2. : Mean age of online dating service users is not 40 years.

\mu\neq40

⇒ Null Hypothesis : H_0:\mu=40

Alternative hypothesis : H_0:\neq40

5 0
3 years ago
Saved
Scorpion4ik [409]
Answer: 91/167

Explanation:
7 0
3 years ago
A piece of fabric is 2 yards long. The fabric is cut into 24 pieces of equal length. How long is each piece?
Vera_Pavlovna [14]

Answer:

48 Yards long

Step-by-step explanation: You multiply 24x 2

3 0
3 years ago
Read 2 more answers
You want to build a fence around a rectangular yard that is 15 ft. Wide and 25 ft. Long. Find the perimeter of the yard. If fenc
nikklg [1K]

Answer:

$500

Step-by-step explanation:

25*2=50

15*2=30

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80(6.25)=500

5 0
3 years ago
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