In the first one the answer is letter B, if you divide 255 by 3 is gonna give you 85 then multiply 85 x 50 and its gonna give you 4,250. Let me know if im good or wrong. Have a great day :)
Given:
let h be the high quality bean
let c be the cheaper bean
h + c = 160
6h + 3.25c = 160*4.97
6h + 3.25c = 795.20
h = 160 - c
6(160 - c) + 3.25c = 795.20
960 - 6c + 3.25c = 795.20
-2.75c = 795.20 - 960
-2.75c = -164.80
c = -164.80 / -2.75
c = 59.92 or 60 lbs
h = 160 - c
h = 160 - 60
h = 100 lbs
Sarah should blend 60 lbs of cheap coffee bean and 100 lbs of high quality coffee bean.
Answer:
x = 5 or x = -11
Step-by-step explanation:
(x+3)²+8=72
x² + 6x + 9 + 8 = 72
x² + 6x -55 = 0
(x - 5) (x + 11) = 0
x = 5 or x = -11
Answer:
(8×6)+2×((14+6)×6)
=48+2×(20×6)
=48+240
=288
Step-by-step explanation:
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Answer:
Probability distribution B
Step-by-step explanation:
Probabilities cannot be negative numbers. This means we can exclude distributions A and C.
Probability can be a maximum of 1.0. This means we can eliminate distribution D.
This leaves distribution B.
We can double check by finding the sum of the distribution. The sum of a probability distribution is 1.0. Adding these probabilities together, we have
0+0.45+0.16+0.39 = 1.00
B is correct.