Answer:
350 feet per minute
Step-by-step explanation:
The amount of time it took the plane to descend is 3 hours 14 minutes minus 1 hour 30 minutes.
This means it took 104 minutes for the plane to descend 36,400 feet.
Dividing 36400 by 104, you get 350 which is the average rate of descent in feet per minute.
Answer:
6kg pure copper and 30 kg 10% copper was mixed to give 36kg of 25% alloy
Step-by-step explanation:
Here, we want to produce 36 kg of 25% alloy
Let the Pure copper be x kg while 10% alloy be y kg
Pure copper is simply 100% copper
Thus;
x + y = 36 •••••(i)
Then;
100% of x + 10% of y = 25% of 36
= x + 0.1y = 9 •••••• ii)
From i x = 36-y
from ii, x = 9-0.1y
Equate both x
36-y = 9-0.1y
36-9 = 0.1y + y
0.9y = 27
y = 27/0.9
y = 30
x = 36-y
x = 36-30
x = 6 kg
Answer:
The LCD in 1/30 + 1/24 is <u>90</u>.
Answer:
a or d im very positive that is d
Step-by-step explanation:
Answer:
We'll solve that in parts.
The upper part is a right triangle that is 4 by (2 + 2 +6)
Area = (4 * 10) /2 = 20
The bottom of that figure is made of 3 parts.
A) a 2 by 2 right triangle. area equals (2*2)/2 = 2
B) a 2 by 2 square whose area equals 2*2 = 4
C) a 6 by 2 right triangle whose area equals (6*2) / 2 = 6
Total Area = 20 + 2 + 4 + 6 = 32
Step-by-step explanation:
