Zaiceldaidn
Answered

Makahanap ng mga eksaktong solusyon sa iyong mga problema gamit ang IDNStudy.com. Makakuha ng hakbang-hakbang na mga gabay para sa lahat ng iyong teknikal na tanong mula sa mga miyembro ng aming komunidad.


2) If the sum of two numbers is 45 and their difference is 12, what is the difference of
their squares? ​

Sagot :

Kristinetintin250idn

Answer:

The sum of two numbers is 45 and their difference is 12. What are the two numbers? Let's start by calling the two numbers we are looking for x and y.

The sum of x and y is 45. In other words, x plus y equals 45 and can be written as equation A:

x + y = 45

The difference between x and y is 12. In other words, x minus y equals 12 and can be written as equation B:

x - y = 12

Now solve equation B for x to get the revised equation B:

x - y = 12

x = 12 + y

Then substitute x in equation A from the revised equation B and then solve for y:

x + y = 45

12 + y + y = 45

12 + 2y = 45

2y = 33

y = 16.5

Now we know y is 16.5. Which means that we can substitute y for 16.5 in equation A and solve for x:

x + y = 45

x + 16.5 = 45

X = 28.5

Summary: The sum of two numbers is 45 and their difference is 12. What are the two numbers? Answer: 28.5 and 16.5 as proven here:

Sum: 28.5 + 16.5 = 45

Difference: 28.5 - 16.5 = 12

Ang iyong presensya ay mahalaga sa amin. Magpatuloy sa pagtatanong at pagbibigay ng mga sagot. Sama-sama tayong magtutulungan upang makamit ang mas mataas na antas ng karunungan. Ang IDNStudy.com ay nangako na sasagutin ang lahat ng iyong mga tanong. Salamat at bisitahin kami palagi.