Answer:
(49 - 29) + 1 =(50 - 29)
Step-by-step explanation:
The 20 comes from the subtraction of 29 in both sides of the previous step equality. In the following, I transcript the complete procedure and I add the step that you need to understand why 20 appears (in bold numbers):
29+20=49
49+1=50
(49 - 29) + 1 =(50 - 29)
20+1=21
50-29=21
hence, it was only nesseraty to subtract 29
Answer:
36
Step-by-step explanation:
Okay! This question is a very simple one, but without a calculator, your answer could easily vary from others! So, let´s do this one together!
The equation:
0.810x0.00048/0.000400x0.027
Let´s do the top :
0.810 x 0.00048 = 0.0003888
I will leave these numbers the same until the last part, lets not round them.
Bottom:
0.0004 x 0.027 = 0.0000108
And again I am not going to round this number.
Now we can divide!
0.0003888/0.0000108 = 36
I hope this helped!
Answer:
2.99999997
Step-by-step explanation:
its not a whole number.
Answer:
The value of x is reduced to one third when the value of y is tripled.
Step-by-step explanation:
Here, y varies inversely with x.
⇒
Here, k = Constant of Proportionality.
⇒ k = x y .......... (1)
Now, given y' = 3 y
to find the value of x'
Putting the value in

or, k = 3 y x '.......... (2)
From above statement (1) and (2)
⇒ xy = 3yx'
or, x ' = x/3
Hence, the value of x is reduced to one - third when the value of y is tripled.