3x + 4(2) = 20
3x + 8 = 20
3x = 12
x = 4
(4,2)
You have y=2 then all you need to do is plug 2 into the y in the equation 3x + 4y = 20 and do the math to find x. Hope this helps
Answer:
5
Step-by-step explanation:
- 2×1/2 + 4×(4×2 - 7) = ⇒ multiplication
- 1 + 4×(8 - 7) = ⇒ parenthesis
- 1 + 4×1 = ⇒ multiplication
- 1 + 4 = ⇒ addition
- 5 ⇒ answer
Answer:
19.24 weeks
Step-by-step explanation:
Given that;
Mean, m = 18
Standard deviation, s = 3
Break down cost = 2000
Preventive maintenance cost = 1400
The optimal preventive maintenance level is Given by :
Mean + service level * standard deviation
Service level = preventive maintenance cost / (breakdown cost + preventive maintenance cost)
Hence,
Service level = 1400/(1400+2000) = 1400 / 3400
Service level = 0.4117647
Optimal preventive maintenance level :
18 + (0.4117647 * 3)
18 + 1.2352941
= 19.235
= 19.24 weeks
3/10 is the answer because 30/100
Devide both by 10 and poof there's the answer!
Answer:
B) 72
Step-by-step explanation:
28+(17x+4)=4+24x
17x+32=24x+4
32=24x-17x+4
32=7x+4
7x=32-4
7x=28
x=28/7
x=4
WGH=17x+4=17(4)+4=68+4=72
