Ms. maryna has 10 lbs of 25% sugar syrup. how much sugar does she need to add to make 40% sugar syrup?

The answer is, 2.5

Step-by-step explanation:

Multiply each pairs:

25%*10=250

Since Adding sugar mean that its concentration is 100%.

100%*x=100x

All of that equals to 40(10+x)

so, the equation is,

250+100x=400+40x

Do the equation and you are left with 2.5 as an answer.

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

80π/3 or about 83.775

step-by-step explanation:

since a cone is 1/3 of a cylinder, we need to find the base's area. since area = πr^2, we get 16π. then, multiplying this by 5, we get 80π. dividing by 3, since the cone's volume is 1/3 of that of a cylinder's, we get 80π/3.

hope this !