Answer:
(-3,3)
Step-by-step explanation:
Using elimination:
Multiply the first equation by 8 and the second by 5 which equals
40x+56y=48
-40-60y=-60
Now you add them together
40x+(-40x)=0 so that crosses out
56y+(-60y)= -4y
48+(-60)=-12
You now have -4y=-12
Divide by -4
y=3
Now plug in y to any of the equations
5x+7(3)=6
5x+21=6
Subtract 21 from both sides
5x=-15
Divide by 5
x=-3
Your final solution is (-3,3)
Answer:
Two numbers whose product is 1 are called reciprocals
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
Answer:
5in by 7in
Step-by-step explanation:
2*(l+w)= 24 => l+w= 12
Le= 35
It is easy to see that 35=5*7 and 12= 5+7
So 5 and 7 are the dimensions of the card