Answer: x=90
Step-by-step explanation:
because the range is 8, and the highest value in the data set is 98, x must equal 96
Let the time taken for the first pipe to fill the pool be x hours
time taken for second pipe to fill the pool is (x+7) hours
time taken for both pipes to fill the pull =(x-9) hours
thus fraction of time taken for both will be written as:
1/(x-9)
thus total fraction for pipe 1 and 2 will be
1/x+1/(x+7)=1/(x-9)
solving for x we get:
x=-3 or x=21
but time is positive, then time taken by first pipe is 21 hours
time taken by both pipes will be 21-9=12 hours
Answer:
Step-by-step explanation:
This question asks to solve an inequality which can be written as:
Solve for x:
From here we can deduce that the inequality is 
when:
or 
We can write the solution as:
Answer:
£10,737,418.24
Step-by-step explanation:
<u>Every day amount doubles:</u>
- March 1st = 1p= 2^0 p
- March 2nd = 2*1p = 2^1 p
- March 3rd = 2*2p = 2^2 p
- ...
- March 31st = 2^30 p = 1,073,741,824 p = £10,737,418. 24
19) should be 320.
20) no beacuse "<span>a </span>regular polygon<span> is a </span>polygon<span>that is equiangular (all angles are equal in measure) and equilateral (all sides have the same length). "
im pretty sure this is right hope it help. (sorry if its not, but it should be)
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