Which pairs are solutions to the equation?

5xy + 9 = 44

A.
(4, 11) and (2, 3)

B.
(7, 1) and (2, 3)

C.
(1, 7) and (4, 11)

D.
(1, 7) and (7, 1)

Question

Which pairs are solutions to the equation?

5xy + 9 = 44
 
 A.
(4, 11) and (2, 3)
 
 B.
(7, 1) and (2, 3)
 
 C.
(1, 7) and (4, 11)
 
 D.
(1, 7) and (7, 1)

pooja195 · Answer

Plug in your answer choices into the equation : )
A. 
5(4)(11) + 9 = 44 true or false? 
5(2)(3)  + 9 = 44 true or false?

readergirl12 · Answer

5(4)(11)+9=44 False?
5(2)(3)+9=44 False?

pooja195 · Answer

Correct so we know its not A 
B.
We can elminate B because the 2nd coordinate is (2,3) we know its false

pooja195 · Answer

Let's try C 
5(1)(7) + 9 = 44 <--t or f? 
5(4)(11) + 9 = 44 <---t or f?

readergirl12 · Answer

5(1)(7)+9=44 True?
5(4)(11)+9=44 False?

pooja195 · Answer

Correct so we know its D 
We know that (1,7) is correct that leaves us with the 2nd coordinate lets check
5(7)(1)+ 9 = 44
t or f

readergirl12 · Answer

True.

pooja195 · Answer

Good so we know D is the answer! =)

readergirl12 · Answer

Thankssss cx

pooja195 · Answer

np =P