Answer:
586
Step-by-step explanation:
Answer:
y= -2
x = 5
Step-by-step explanation:
Multiply the top equation by 2 to get
2x + 6y = -2
then subtract the bottom equation by the new equation to get
2x + 6y = -2
--------------------
2x + 2y = 6
which is
4y = -8
y = -2
If y = -2
Then plug -2 into y in the top equation to get x + 3(-2) = -1 and simplify which is
x + (-6) and add 6 to both sides to get x = -1 + 6
which is x = 5
Answer:
2/5 pizza
Step-by-step explanation:
If 1/20 is one dollar, you can buy 8/20, that is 2/5 pizza
D. Because you're multiplying 3 by a number which is what the variable represents (n), then you're just adding 7 to that which equals 19 all together. It all translates to 3n+7=19.
Answer:
$120
Step-by-step explanation:
40% off means that the post reduction price is 60% of the original.
Therefore, if $45 is 60% of the original,
100% of the original price = 45 / 60 x 100 = $75
Therefore, the total cost of both = 45 + 75 = 120
