4?
this might be the answer but i’m not completely sure:) here’s what i used to *try* to solve it
The cost per foot of redwood and of pine is $3.5 and $1.5 respectively.
<h3>How to solve simultaneous equation?</h3>
let
- cost of redwood = x
- cost of pine = y
50x + 70y = 280
100x + 60y = 440
Multiply (1) by 2
100x + 140y = 560
100x + 60y = 440
subtract to eliminate x
80y = 120
y = 120/80
y = $1.5
substitute y = 1.5 into (1)
50x + 70y = 280
50x + 70(1.5) = 280
50x + 105 = 280
50x = 280 - 105
50x = 175
x = 175 / 50
x = $3.5
Learn more about equation:
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(xy=x times y just fyi)
bought bike for 368.9
this was including sales tax of 8.5%
(percent means part out of 100 so 8.5%=8.5/100=0.85/10= 0.085/1 1=0.085)
so paid=price+tax
paid=368.9
price=p
tax=p times 8.5%=0.085
368.9=p+p times 0.085
368.9=p+0.085p
or
p+0.085p=368.9
the answer is C
Answer:
If it is Area, the answer is:
A=6 (2x+1)
If it is Perimeter it is:
P= 3x+ 13
First we need to find the heigh of the soda can be rearanging the volume formula,

. We can make that

We know that V is 36 and radius is half of the diameter, so radius is 2.


h = 2.87
Now, we can use the height to figure out the volume of a cone. The volume of a cone is

R is 2 again and h is 2.87


12.56*.96 = 12.0576
So a cone with a volume of 12.0576 is the largest that will fit into the soda can