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MrMuchimi
2 years ago
10

Pythagorean theorem question:)

Mathematics
1 answer:
AURORKA [14]2 years ago
4 0
11^2 + 9^2 = x^2
121 + 81 = x^2
202 = x^2
14.21 = x

The answer is 14.21
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mr john has a son and a daughter , the son being 4 years older than daughter.Five years ago the age of mr john was 23 years more
jeka94

First, let us define our variables.

Let

x = age of the father

y = age of the son

z = age of the daughter

 

5 years ago..

(x – 5) = age of the father

(y – 5) = age of the son

(z – 5) = age of the daughter

 

After 18 years...

(x + 18) = age of the father

(y + 18) = age of the son

(z +18) = age of the daughter

 

From the first condition

y = z + 5 à eqn 1

5 years ago

(x-5) = 23 + (y-5) + (z-5)

x –y –z = 18 à eqn 2

after 18 years

(x+18) = 17*[(y +18 –z – 18)]

x – 17y + 17z = -18 à eqn 3

 

solving the 3 equations simultaneously

x = 67

y = 27

z = 22

 

 

6 0
3 years ago
I will mark brainilest if someone tells me what 69 x 420 is
Ostrovityanka [42]

Answer:

28,980

Step-by-step explanation:

4 0
3 years ago
Please what is the answer?
Fantom [35]

Answer:

fraction =  \frac{2.5}{10}  =  \frac{25}{100}  \\  \\ decimal = 0.25 \\

3 0
3 years ago
Draw a model for 6÷1/5
balandron [24]

nope cannot do that stuff

3 0
3 years ago
What is 6/10 divided by 2/5
babunello [35]

Answer:3/2

Step-by-step explanation:

6/10 ➗ 2/5

6/10 x 5/2

(6x5)/(10x2)

30/20=3/2

3 0
3 years ago
Read 2 more answers
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