D/60 + D/50 = 2D/55 - 1/2
find common denominator ( 3300)
3300/60 = 55
3300/50 = 66
3300/55=60
so then you get 55D +66D= 60(2D)-1650
121D=120D-1650
D=1650 miles
check
1650/60 =27.5, 1650/50 = 33, 27.5 + 33 = 60.5 hours total
1650/55 = 30, 30 x 2 = 60
60.5-60 = 0.5 longer
so distance = 1650 miles
4/33
the way i do it, is i want 12 to be recurring, so i do 12/100, then i take away one from the denominator, so i get 12/99 = 0.121212.....
similarly, if i wanted 0.123123123,
i could do 123/1000 then take away one from the denominator to get 123/999 and that should give us 0.123123123123
Answer:
Step-by-step explanation:
2x + 6
Let be the first term in the series and the common ratio. Then the infinite series converges to
Removing the first three terms from the left side effectively multiplies the right side by 27, so
By elimination,
Solve for . We can eliminate so that
Hello,
Answer:
4,8
Step-by-step explanation:
<u>what would be 12% of 40 ? </u>
12% × 40 = 12/100 × 40 = 0,12 × 40 = 4,8