Answer:
A
Step-by-step explanation:
<span>A system of equations has infinitely many solutions when the two lines representing the equations coincide. i.e. the two equations are the same.
2y - 4x = 6
2y = 4x + 6
2y = 2(2x + 3)
y = 2x + 3
-y = -(2x + 3)
-y = -2x - 3
Hence the other equation is -y = -2x - 3
</span>
9514 1404 393
Answer:
D. Henry's started farther, went faster
Step-by-step explanation:
Henry's balloon traveled 18 additional miles (from 30 to 48) in 2 hours, so had a speed of 18mi/(2h) = 9 mi/h. The equation for his position could be ...
y = 9x +30 . . . . . 9 is the rate of change; 30 is the initial value
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Comparing this to Tasha's position function, we see her balloon started 20 miles from town and traveled 8 miles per hour.
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Henry started farther from town and traveled faster.
$230.63 : 123 / 8 is 15.375, (The unit rate) • 15 would be 230.625. Round up to 230.63.
The first option 0.65 might be right