2x + 3y = 6
5x + 2y = 4

which of the following equations could be the result of multiplication and addition to eliminate a variable in the system of equations?

19x = 24
19y = 22
11y = 22

Option c :11y = 22

Step-by-step explanation:

Given :

--(a)

 ---(b)

Solution :

First multiply equation (a) by 5 then it become :

--(c)

Then multiply equation (b) by 2 then it becomes :

--(d)

Now subtract (d) from (c)

⇒

⇒

⇒

⇒

Thus , option C is right.

10.416 meters per second

step-by-step explanation:

distance=1 00 meters

time= 9.6 seconds in decimal form or 9 3/5 as a mixed number

average speed= 100/9.6

=10.416 meters per second or 10 52/125 as a mixed number.

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.