Answer:
Hey! The answer is <em>-4 5/12</em>
Step-by-step explanation:
<em>First, make all the mixed number into a improper fraction.</em>
<em>Next, find the least common multiple.</em>
<em>Than, adjust the fractions basied on the LCM.</em>
<em>Lastly, convert the improper fractions to mixed numbers</em>
<em>follow these steps in order to get -4 5/12 as your answer.</em>
<em>so therefore your answer will be:</em>
<em>-4 5/12</em>
hope this helps!
Let t and s represent the masses of 20% and 60% alloys respectively.
t+s=80, s=80-t
(0.2t+0.6s)/80=0.52 multiply both sides by 80
0.2t+0.6s=41.6, now using s=80-t in this equation gives us:
0.2t+0.6(80-t)=41.6 perform indicated multiplication on left side
0.2t+48-0.6t=41.6 combine like terms on left side
-0.4t+48=41.6 subtract 48 from both sides
-0.4t=-6.4 divide both sides by -0.4
t=16, since s=80-t
s=64
So 16kg of 20% alloy is mixed with 64kg of 60% allow to make 80kg of a 52% alloy.
They each contributed $6.75. I got that because i divided the $27.00 by the 4 friends and got $6.75, to make sure I also multiplied the $6.75 by 4 and got $27.00
Answer:
62.5 miles per hour
Step-by-step explanation:
Given data
distance= 125m
time= 2 hours
We know that
speed= distance/time
Subsitute
Speed= 125/2
speed= 62.5 miles per hour
