Answer:
1) (-6,-9)
times the top equation buy -4 so you cancel out the y
so it be -8x+4y=12 no cancel out the y's
so it be -8x=12 and 5x=6
now combined like terms to get -3x= 36
x = -6 now go plug that back in one of the equations to get y
y = -9
2) (-2,-5)
now on this one you going to substitute y= (2x-1) for y in the otheir eqaution
so it look like 3x-(2x-1)=-1
do your combining of like terms and your division & you get x = -2
now plug x in to y=2x-1 to get y = -5
There's 2 bags filled. 1/2 is equal to 2/4. If Claire does put 1/4 pound of trail mix into each bag, like the problem said, then she fills 2 bags.
If x = 0 is 1990, x = 1 is 1991, then 1998 is represented by x = 8. Substitute this value of x into the quadratic equation to find y:
y = 0.016*(8^2) + 0.124*8 + 0.787 = 1.024 + 0.992 + 0.787 = 2.803
Therefore, there were approximately 2.803 million SUVs sold in 1998.
The answer would be x=-7
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The difference of the two temperatures is 92. This is because 90-92=-2. I hope this can help you.
