Answer:
Step-by-step explanation:
6*( 5 + X) = 36
30 + 6X = 36
6X = 6
X = 1
Answer:
$15
Step-by-step explanation:
Let Sam's Money =s
Let Janet's Money =j
of Sam's money equals of Janet's money.
Let n be the number of dollars held by Sam and Jane respectively
Therefore:
s=3n
j=2n
s+j=3n+2n=5n
Together, they have more than $10
Therefore:
5n>10
n>2
The least sum they could have is at n=3
At n=3
s+j=5n=5X3=$15
The least number of dollars they could have combined is $15.
Answer:
Every decade, the number of species decays by a factor of 0.0834.
Step-by-step explanation:
Let be , . The decay rate per decay is deducted from the following relation:
Every decade, the number of species decays by a factor of 0.0834.
First, set up the equation using the point-slope formula (y-y1)=m(x-x1).
y1=-4 x1=-3 m=-7/2
(y+4)=-7/2(x+3)
Second, distribute -7/2.
(y+4)=(-7/2)x - 21/2
Third, subtract 4 from both sides.
(y+4)=(-7/2)x - 21/2
-4 -4
______________
y=(-7/2)x - 29/2