Answer:
8n-25=15+3n
Step-by-step explanation:
We can do this by working backwards and making suitable substitutions.
If n=8
Multiply both sides of the equation by 5
5n=8*5
5n=40
Now, we can rewrite the two sides of the equation as follows
Thus:
5n=40 is equivalent to:
8n-3n=25+15
Add 3n to both sides
8n-3n+3n=25+15+3n
8n=25+15+3n
Subtract 25 from both sides
8n-25=25-25+15+3n
We have:
8n-25=15+3n
Solving this equation will have a solution of n=8.
Answer:
442
Step-by-step explanation:
100%-> 520
85%-> 442
Answer:
14.64 cm
Step-by-step explanation:
this problem is finding radius of a circle from the circumference given.
Circumference of a circle = 2(3.14) r
Using the above we can find one if we know the other. In our case we know circumference and calculate radius.
Circumference = 2(3.14)r= 92 cm
Hence r = 92/2(3.14) = 14.6497cm
apprxoximately 14.64 cm is close to the answer
Hence answer is 14.64 cm.
The answer would be 5547
First you multiply 5417 and 2.4% to get 130.008
Then you add 130.008 and 5417 to get 5547.008
but you can round this to 5547
Hope this helped! :)