It's the only table with a constant, which is required in a proportional relationship. The constant would be 1300 which you can find by divided the two numbers in each row.

7 0

3 years ago

If I can paint a wall in 20 min and my friend can paint a wall in 30 min. How many minutes would it take for us to paint a wall

ra1l [238]

Answer: $12\ \text{min}$

Step-by-step explanation:

Given

It takes 20 min and 30 min for a person and his friend to paint a wall individually i.e.

In 1 min they cover $\frac{1}{20}$ part and $\frac{1}{30}$ part of wall respectively.

If the work together, 1 minute work is

$\Rightarrow \dfrac{1}{20}+\dfrac{1}{30}\\\\\Rightarrow \dfrac{3+2}{60}\\\\\Rightarrow \dfrac{5}{60}$

Time required will be reciprocal of it

$\Rightarrow \dfrac{60}{5}=12\ \text{min}$

3 0

3 years ago

What is $40.39 times x

Iteru [2.4K]

Answer:

$40.39x

Step-by-step explanation:

hope this helpss!!!

5 0

2 years ago

If 1=3 , 2=3 , 3=5, 4=4, 5=4 then , 6=?

Juli2301 [7.4K]

Answer:

is 3, because ‘six’ has three letters

4 0

2 years ago