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adoni [48]
3 years ago
5

What is the algebraic expression of the sum of 3 coins and c coins

Mathematics
2 answers:
Gnesinka [82]3 years ago
5 0
3+c .........................
Feliz [49]3 years ago
5 0
The sum is: 3+c
there are 3 coins that you are added to a number, c.
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I need helping solving -3z+7=-7-10z
Tpy6a [65]
-3z + 7 = -7 - 10z

Add 10z to both sides

7z + 7 = -7

Subtract 7 from both sides

7z = -14

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8 0
4 years ago
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(1/9) × 5 × 3√(2 × (1/arccos(8741)) × 543) =
Nadusha1986 [10]

Answer:

Undifined

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3 years ago
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Please help me please help please please help me
Korolek [52]

Answer:

3/2

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y = mx + c

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8 0
2 years ago
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2. One important factor in inventory control is the variance of the daily demand for a product. Management believes that demand
salantis [7]

Answer:

we reject H0 and conclude that management's belief about variance is untrue.

Step-by-step explanation:

H0 : σ² = 250

H1 : σ² ≠ 250

Sample size, n = 25

xbar = 50.6 ; s² = 500

α = 0.01 ;

The test statistic :

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Reject H0 : if |χ² statistic| > critical value

Since 48 > 45.559

Hemce, we reject H0 and conclude that management's belief about variance is untrue.

4 0
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Answer:

Step-by-step explanation:

The time it takes to empty the tank = 85/4 + 0.25 = 21.25 minutes.

- because it takes 21 minutes  to empty 84 gallons and the last gallon takes

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3 0
2 years ago
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