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
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Answer: A 17 more
Step-by-step explanation:
Answer:
3+7+11+15+(4n-1) = N(2n+1)
Step-by-step explanation:
atleast that's what i got-
Answer is 360.....
135/3 = 45
45 * 8 = 360
Answer:
The measure of angle x is 
Step-by-step explanation:
To find the measure of angle X, apply the law of cosines
The law of cosines states that
In this problem we have
substitute
![C=arccos[(986-576)/950]=64.4\°](https://tex.z-dn.net/?f=C%3Darccos%5B%28986-576%29%2F950%5D%3D64.4%5C%C2%B0)
Therefore
The measure of angle x is
