Solve the literal equation for x

s=2r+3x

r  =  s /2  -  3 x /2

or

x  =  s /3  −  2 r/ 3

Step-by-step explanation:

2r+3x=5

2r+3x+-3=5+-3x

2r=5-3x

2r/2=5-3x

2r/2=5-3x/2

r=1/2⁵ + -3/2x

r=1/2⁵ + -3/2x

hope it helps ya!

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)

5   1/4   miles per hour

step-by-step explanation:

15   3/4 / 3 = 5   1/4