Answer:
272
Step-by-step explanation:
340 × 20%
=340 × 20/100
=340 × 0.2
= 68
20% of 340 = 68
340-68 =272
I'm pretty sure it's 73 degrees as well since Quadrilaterals are congruent.
Answer:
9.08 hours
Step-by-step explanation:
in order to fill 1 pool
fill rate by pipe = 1 pool / 15 hours = 1/15 pool per hour
fill rate by hose = 1 pool / 23 hours = 1/23 pool per hour
combined rate = fill rate by pipe + fill rate by pool
= 1/15 + 1/23 = 38/345 pool per hour
since:
38/345 pool -----------> will take 1 hour
1 pool --------------------> will take 1 hour x (345/38) = 9.08 hours
The equation only has 1 solution which is 2.
