Answer:
Step-by-step explanation:
1/7+1/13=1/t
multiply both sides by 7*13*t
13t+7t=7*13
21t=91
t=91/19
it will take 4 hours and 8 minutes
Answer:
7200
Step-by-step explanation:
principle=10000
time=9
rate=8%
now
simple interesr=p*t*r/100
= 10000*9*8/100
=7200
There are two triangles that exist in this problem. First is the given triangle ABC, witch AB = BC = 6 and AC = 8
Next is the smaller triangle formed by connecting points D and E; triangle EAD, with EA = AD = 3 and the length of DE is unknown.
Because these triangles are similar, a simple ratio may be set up in order to calculate DE.
DE / AC = EA / AB
DE = 3/6 * 8
DE = 4 units
6000 is 10 times as much as 600, so false.
Answer:
The length of the model is 12.4.
Step-by-step explanation:
2in=25ft
x=155ft
155/25=6.2
2*6.2=12.4
