9514 1404 393
Answer:
(x, y) = (2, -6)
Step-by-step explanation:
Subtract the first equation from the second.
(8x -2y) -(5x -2y) = (28) -(22)
3x = 6
x = 2
Substitute this into either equation and solve for y.
8(2) -2y = 28
8 -y = 14 . . . . . . . . divide by 2
y = 8 -14 = -6 . . . . add y-14 to both sides
The solution is (x, y) = (2, -6).
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I like a graphing calculator for a quick solution to such problems.
Answer:
Step-by-step explanation:
Answer:
112.5 people
Step-by-step explanation:
Answer:
Step-by-step explanation:
1) Cancle x from both sides.
2) Since 128 = 68 is false, There is no solution.
Let's go through each answer.
a.
This is incorrect because the answer doesn't have any numbers that are below 11, but the histogram has 5.
b.
This is incorrect because the answer doesn't have any numbers that are above 10, but the histogram has 7.
c.
This is incorrect because the answer doesn't have any numbers that are below 11, but the histogram has 5.
d.
This is correct because it has 3 numbers that are between 1 and 5, 2 numbers between 6 and 10, 4 numbers between 11 and 15, and 3 numbers between 16 and 20, just like the histogram.
The answer d.
Hopefully this helps! If you have any more questions or don't understand, feel free to DM me, and I'll get back to you ASAP! :)