Are these two equations parallel, perpendicular, or neither? y = 5/4x + 17 and -5x + 4y = -16
1 answer:
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Answer:
1. >; 2. >
Step-by-step explanation:
1.
⅜ (?) 0.295 Convert ⅜ to a decimal fraction
0.375 (?) 0.295
We can use a <em>number line</em> to decide which number is greater.
In Fig. 1 below, when we go from 0.295 to 0.375, we are moving to the <em>RIGHT</em>, so 0.375 is greater than 0.295.
0.375 > 0.295
2.
-0.770 (?) -4/5 Convert ⅘ to a decimal fraction
-0.770 (?) -0.800
In Fig. 2 below, when we go from -0.80 to -0.77, we are moving to the <em>RIGHT</em>, so -0.770 is greater than -0.800.
-0.770 > -0.800
Answer:
Pool will be filled in 280 hours
Step-by-step explanation:
Inlet pipe fills in 40 hours = 1 pool
Inlet pipe fills in 1 hours =
Drain pipe empty in 42 hours = 1 pool
Drain pipe empty in 1 hour =
If both pipes are opened together
then in pool fills in 1 hour = -
on simplifying the right side ,we get
=
=
pool fills in 1 hour
1 pool will be filled in 840 hours
pool is filled
empty pool = 1 - =
therfore pool will be filled in
X 840 =
= 280 hours