Let
x----------------- > <span>the height of the smaller painting
y-----------------> </span>the height of the tall painting-----------> 6 ft<span>
the scale factor is-------------- > x/y
(x/y)=(4 in)/(1.5 ft)
x=y*[</span>(4 in)/(1.5 ft)]-------> 6*(4 in)/(1.5 ft)=16 in
<span>
the answer is x=16 in
</span>
If the speed of boat in still water iss 9 mph and takes 1.5 miles to go and come 4 miles uptream and downward then the current of the river is 9.24 mph.
Given that the speed in still water be 9 mph, time to travel 4 miles upstream and downward is 1.5 hours.
We are required to find the speed of current of the river.
let the speed of current be c mph.
Effective speed in downstream=9+c
Effective speed in upstream=9-c
Total time=1.5 hours.
Total distance=4 miles.
Time for upstream stream+ time for downward stream=1.5 hours
2/(9+c)+2/(9-c)=1.5
18-2c+18+2c=1.5(9+c)(9-c)
36=1.5(81-
)
36=121.5-1.5
1.5=121.5-36
=85.5
c=9.24 mph.
Hence the speed of the current of the river is 9.24 mph.
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Answer:
44%
Step-by-step explanation:
my opinion is 44%
Help it helps you
Your answer would be 15.6
Answer:
The next two terms after a1 is
-6 and then 18
Step-by-step explanation:
Geometric sequence means your pattern for the terms is multiplication by the same number.
So a1 is the first term and r is your common ratio.
The common ratio is what you are multiplying by each time to figure out the next term.
So the geometric sequence goes like this:
a1 , a1*r , (a1*r)*r or a1*r^2 , a1*r^3 ,....
So anyways you have
first term a1=2
second term a2=2(-3)=-6
third term a3=-6(-3)=18
And so on...
