If you're asking how this is possible,
Answer and explanation:
If Sandy and Allen's mother does the job in 5 hours
And Allen and Sandy's contributions completes the job in 2.5 hours
5 hours - 2.5 hours =2.5 hours
Allen and Sandy's contribution is half of the time it took only Allen and Sandy's mother= 2.5 hours
Therefore Allen and Sandy together will take 2.5×2 = 5 hours to complete the job alone without their mother
A similar example: if it takes one person 2 hours to peel 5 potatoes and it takes 1 hour to peel same number of potatoes if a second person helps, then this second person reduces the time used by 1 hour(50%) and would take 2 hours to complete the work.
Answer:
an inequality symbol means either>or<so in this question 4 u use x<12
Lateral Area of a Cone = PI * radius * slant heightLateral Area=
<span>
<span>
<span>
188.4955592154 square inches
</span></span></span>
<span><span>
</span>
</span>
Total surface area = Lateral Area + Base AreaBase Area = PI * 25Base Area =
<span>
<span>
<span>
78.5398163397
</span></span></span>Total Area = <span>
<span>
188.4955592154</span> + </span><span>78.5398163397
</span>
<span>Total Area = <span>
</span>267.0353755551</span><span><span><span><span> square inches</span>
</span>
</span>
</span>
<span><span>
</span>
</span>
Source:http://www.1728.org/volcone.htm
Answer:
Step-by-step explanation:
1st way:
Solve directly
6p=0.6(5p+15)
Open bracket
6p = 3p + 9
Collecting like terms
6p - 3p = 9
3p = 9
Dividing by 3
p = 9/3
p = 3
2nd way:
6p=0.6(5p+15)
Convert the decimal to fraction
6p= 6/10(5p+15)
6p= 3/5(5p+15)
6p= 3/5(5p) +3/5(15)
6p = 3p + 9
Collecting like terms
6p - 3p = 9
3p = 9
Dividing by 3
p = 9/3
p = 3
