Answer:
5x-1+3x+4+x+11x-21
24x-18=0
24x=18
x=3/4
AB=3/4
BC=3/4
AD=2.25 or 2 1/4
Step-by-step explanation:
IDK if it is right plz let me know if it is
Answer:
Will’s Wrapping Company needs 7,720 mm2 of paper to wrap the chocolate bar.
Step-by-step explanation:
we know that
The amount of paper needed to make the wrapper is equal to the surface area of the chocolate bar
The surface area of a rectangular prism (chocolate bar) is equal to
where
B is the area of the base
P is the perimeter of the base
H is the height of he prism
In this problem we have
<em>Find the area of the base</em>
<em>Find the perimeter of the base</em>
<em>Find the surface area</em>
Answer:
There are many solutions.
Step-by-step explanation:
A 20% discount on $50 takes us to $40. A 25% discount on the $40 takes us to 30%.
We can also do a 4% discount to bring us to $48, followed by a 62.5% discount, to get to $30.
Answer:
a). Y = y0e^-k(t)
b) Y = 19.4 Unit mass
Step-by-step explanation:
Y = y0e^-k(t)
Where y is amount present at the time
Y0 is initial amount present at t = 0
Y0 = 58.7
Half life = 5 hours
At half life , y = 58.7/2
At half life , y = 29.35
K = decaying constant.
Let's look fithe value of k
Y = y0e^-k(t)
29.35 = 58.7e^-k(5)
29.35/58.7 = e^-k(5)
0.5 = e^-k(5)
In 0.5 = -k(5)
-0.69314718 = -k(5)
0.138629436 = k
The value present in 8 hours will be
Y = y0e^-k(t)
Y = 58.7e-0.138629436(8)
Y = 58.7e-1.109035488
Y = 58.7(0.329876978)
Y= 19.36377861
To the nearest tenth
Y = 19.4 unit of mass