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nordsb [41]
3 years ago
15

Is 1931 divisible to 9

Mathematics
2 answers:
Aleks [24]3 years ago
5 0

Not evenly it would give you 214.5555556

vredina [299]3 years ago
4 0

a number is divisible by 9 if the sum of the digits is divisible by 9

1+9+3+1 = 14

14 is not divisible by 9 so 1931 is not divisible by 9

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Step-by-step explanation:

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8 0
3 years ago
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Turn the following fraction into a PERCENT: 15/60 ​
Lina20 [59]
15/60 simplified is 1/4 so the answer is 25%
6 0
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What is X if X + R = S
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7 0
3 years ago
An individual needs a daily supplement of at least 464 units of vitamin C and 252 of vitamin E and agrees to obtain this supplem
hichkok12 [17]

Answer:

z (min)  = 705

x₁  = 10

x₂  = 9

Step-by-step explanation:

Let´s call  x₁  quantity of food I ( in ou )  and x₂ quantity of food II ( in ou)

          units of vit. C   units of vit.E   Cholesterol by ou

x₁                 32                      9                         48

x₂                16                      18                          25

Objective function z

z  =   48*x₁   +  25*x₂        To minimize

Subject to:

1.-Total units of vit. C at least  464

32*x₁   +  16*x₂     ≥   464

2.- Total units of vit. E at least  252

9*x₁  + 18*x₂   ≥  252

3.- Quantity of ou per day

x₁   +   x₂   ≤  35

General constraints    x₁  ≥ 0    x₂   ≥ 0

Using the on-line simplex method solver (AtoZmaths) and after three iterations the solution is:

z (min)  = 705

x₁  = 10

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5 0
3 years ago
The market bought grapes for $0.87 a pound and sold them for $1.09 a pound. What is the percent for increace rounded to the near
Len [333]
So to find percent increase, you want to minus the difference in cost..

1.09- 0.87= .22...

now divide the difference by the original....

.22 ÷ .87 = .25287.....etc

now multiply that by 100...

.25287 × 100 = 25.287

now it says round to the nearest tenth so...

25.29% increase.

5 0
2 years ago
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