Answer:
(6, 5 )
Step-by-step explanation:
Given the 2 equations
4x + 8y = 64 → (1)
7x - 2y = 32 → (2)
Multiplying (2) by 4 and adding to (1) will eliminate the y- term
28x - 8y = 128 → (3)
Add (1) and (3) term by term, that is
32x = 192 ( divide both sides by 32 )
x = 6
Substitute x = 6 into either of the 2 equations
Substituting x = 6 into (1)
4(6) + 8y = 64, that is
24 + 8y = 64 ( subtract 24 from both sides )
8y = 40 ( divide both sides by 8 )
y = 5
Solution is (6, 5 )
Answer:
c.) 8/3
Step-by-step explanation:
the two sides must weigh the same, or 12 grams.
the weights labelled x combined with the 4 grams weight should equal 12 grams.
the equation solved for x would be:
3x + 4 = 12
3x = 8
x = 8/3
Did you just add an answer too a question? 15% is 0.15
Answer:
Answer is 6.23u because ,
