Answer:
7
Step-by-step explanation:
I like to work liter volume problems in terms of decimeters. 1 dm = 10 cm, and 1 dm³ = 1 L, so the tank is 3 dm by 4 dm by 3 dm = 3×4×3 dm³ = 36 L.
36 liters will support 36/5 = 7.2 platies.
7 platies can be kept in the aquarium.
Answer:
-38 - 12x < 200
Step-by-step explanation:
Given,
The original elevation = -38 feet,
Also, the explorer starts moving at a rate of negative 12 feet per minute.
So, the distance covered by explorer after x minutes = -12x feet,
Thus, the final elevation = original elevation + distance covered by explorer
= -38 - 12x
According to the question,
final elevation < -200 feet
⇒ -38 - 12x < 200
Which is the required inequality.
The length of each leg is unknown is first you would have to figure out how long each leg is, one leg is 30ft because of the 30ft on the other side. But since we don't know how long the top is we have to do 70 - 30 which is 40 now that we have both legs we can use the Pythagorean theorem 30^2 + 40^2 = c^2 the answer is 2500 and if we square it we get 50 hope this helps :)