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Lerok [7]
3 years ago
14

the average of the five number was 6.8. If the first four numbers were 4.3, 5.2, 7, and 6.8, What was the fifth number?

Mathematics
1 answer:
Nikolay [14]3 years ago
6 0
Let x be the fifth number
\frac{4.3 + 5.2 + 7 + 6.8 + x}{5} = 6.8
⇔ \frac{23.3 + x}{5} = 6.8
⇔ 23.3 + x = 34
⇔ x = 10.7
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Write an expression that represents the area of the rectangle. Remember A = LW
Iteru [2.4K]

Answer:

b) 9x² - 3x

Step-by-step explanation:

Area of a  rectangle = Length × Width

Area for the rectangle = 3x - 1 × 3x

Area = (3x-1)(3x)

Step 1. Multiply by combining like terms

3x · 3x = 9x²

Step 2. Multiply -1 by 3x

-1 · 3x = -3x

Step 3. Combine 9x² and -3x

9x² - 3x

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6 0
3 years ago
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Bad White [126]

Answer:2

Step-by-step explanation:

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5 0
2 years ago
Juanita is watering her lawn using the water stored in her rainwater tank the water in the tank drops 1/3 inch every 10 minutes
Ilya [14]
<span>Juanita is watering her lawn using the water that is stored by rainwater.
=> the water in the tank drops 1/3 inch in every 10 minutes she waters.
=> The tanks water level is 4 feet.
Question : Number of days can Juanita waters is she waters 15 minutes per day.
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Solution
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8 0
4 years ago
Read 2 more answers
Please help with this pleaseee
saw5 [17]

Answer:

CED=126

Step-by-step explanation:

The total of all 3 angles should be 180

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5 0
2 years ago
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zhuklara [117]

Answer:

5/ sqrt2

Step-by-step explanation:

A=b.a.SinC

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3 years ago
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