The answer is -52
First you must substitute the variables
Then you must simplify
Answer:
Area=
Step-by-step explanation:
Perimeter of the rectangle= 100 feet
Let, the width of the rectangle be 'w'
Length=w+4
Perimeter=2(Length+width)
Length=w+4=23+4=27 feet
Area of a rectangle = Length*Width
Area=
A) 1% lidocaine -x g, 0.01x pure lidocaine
5% lidocaine -y g, 0.05y pure lidocaine
(1)0.01x+0.05y=350*0.02
0.01x g we get from1% lidocoine and 0.05y g we get from 5% lidocoine
(2) x+y=350
x g is mass 1% lidocoine, we combine it with y g 5%,
so we get x+y, and we need 350g,
so x+y should be equal 350, x+y=350
we get system of 2 equations that we need to solve to find x and y
(1)0.01x+0.05y=350*0.02
(2) x+y=350
we can solve it by substitution, find x from (2) equation
x=350-y, substitute it into (1)
instead of x we put (350-y)
0.01(350-y)+0.05y=7
3.5-0.01y+0.05y=7
0.04y =3.5
y=87.5g 5% lidocaine
b)x=350-87.5=262.5 g 1% lidocaine
c) 350g =350000 mg
Answer:
Its D
Step-by-step explanation:
The GCF is 15
so the answer is
15(2x + 1)
Step-by-step explanation:
check out this answer
hope you fine