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g100num [7]
3 years ago
11

Jack said “5 times my age in 2 years is 100.” How old is jack now.

Mathematics
1 answer:
omeli [17]3 years ago
8 0

Answer:

Jack is 18 years old

Step-by-step explanation:

100:5=20

20-2=<u>18</u>

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Step by step explanation: calculator
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A nano-meter is 1 billionth of a metre. 12 Write this number as an ordinary decimal. The radius of a nitrogen atom is 1.5 nano-m
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Anshhhhhwer:

Step-by-step explanation:bbbbbb

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3 years ago
Please help! :)
Aleks [24]

Answer:

<h3><u>Part A.</u> 5n</h3>

<h3><u>Part B.</u> 5n (2n –3) ( n + 2x)</h3>

Step-by-step explanation:

<u>A. Ans ; </u>

10n³ – 15 n² + 20 xn² – 30 xn

Factors ; 10 —> 10 , 5 , 2 , 1

Factors ; 5 —> 5 , 1

Factors ; 20 —> 20 , 10 , 5 , 4 , 2 , 1

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The greatest common factor of numbers is ; 5

n³—> n , n , n

n² —> n , n

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xn —> x , n

The greatest common factor of the variables is ; n

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<u>B . Ans ;</u>

10 {n}^{3}  - 15 {n}^{2}  + 20x {n}^{2}  - 30xn \\ 5n(2 {n}^{2}  - 3n + 4xn - 6x) \\ 5n(2n - 3)(n + 2x)

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8 0
3 years ago
Samuel takes 5 hours to make a table and a chair. He takes 9 hours to make 3 chairs
nikklg [1K]

Answer:

3 hours

Step-by-step explanation:

t = time to make a table

c = time to make a chair

t + c = 5

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t+3c = 9

-(t + c = 5)

-----------------------

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Divide by 2

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c =2

2 hours for the chair

t+c = 5

t+2 = 5

t = 5-2

t = 3hours

7 0
3 years ago
Read 2 more answers
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