3:2---> 3+2=5
5--->the number we have to divide 80 with to get 1 part of the ratio,
3 part of the ratio,
3/5×80= 48
2 part of the ratio,
2/5×80=32
check,
32+48=80
answer,
3:2
48:32
2.75 x + 3.55 y ≤ 2,479
x + y = 820
( x - number of units produced during the regular hours, y - number of units produced in overtime )
y = 820 - x
2.75 x + 3.55 · ( 820 - x ) ≤ 2.749
2.75 x + 2,911 - 3.55 x ≤ 2,749
- 0.8 x ≤ 2,749 - 2,911
- 0.8 x ≤ - 432 / · ( - 1 )
x ≥ 432 : 0.8
x ≥ 540
Answer:
The smallest number of units that must be assembled during the regular hours is 540.
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Answer:
6c(square)+23c+20
Step-by-step explanation:
15c+6c(square)+20+8c=6c(square)+23c+20