Helps me please help me please please help please

Ответ:

avagracesmith5

02.05.2021

$\boxed {\boxed {\sf (4,3) \ is \ not \ a \ solution}}$

Step-by-step explanation:

If we want to test a solution, we can plug it into the equations and see if it checks out.

We are given the point (4,3). Since points are written (x,y)...

x=4 y=3

Substitute the values into the first equation.

$11x+9y=17 \\11(4)+9(3)=17$

Multiply.

$44+ 27=17\\$

Add.

$71 \neq 71$

This does not check out, so we automatically know this point doesn't work. However, we can check the other equation.

$x+y=7 \\4+3=7\\7=7$

Even though the second equation works, BOTH have to work because this is a system of equations. Therefore, (4,3) is not a solution.

0,0(0 оценок)

helpmewithmath70

31.07.2022

Step-by-step explanation:

9/10 vs 36/40

Multiply 9/10 by 4/4 so the denominators are equal

9/10*4/4 = 36/40

36/40 vs 36/40

They are equal

0,0(0 оценок)