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ANEK [815]
3 years ago
8

HELP PLEASEEEE FAST 128 164 140

Mathematics
2 answers:
kenny6666 [7]3 years ago
7 0

Answer: 140 m3

Step-by-step explanation:

Multiply the area of the trapezoid face by the length .

Since the area is 20, you multiply it by 7 to get 140

mr Goodwill [35]3 years ago
3 0

Answer:

140 m^3

Step-by-step explanation:

This is a prism with a trapezoid base.

The volume if a prism is

V = (area of base) * height

The base is the trapezoid in the front face. The height is the distance between bases which is 7 m.

area of trapezoid = (b1 + b2)h/2

In the area of the trapezoid, h is the height of the trapezoid which is the distance between parallel bases. It is 4 m in this case.

V = (area of base) * (height of trapezoid)

V = (8 m + 2 m)(4 m)/2 * 7 m

V = 20 m^2 * 7 m^2

V = 140 m^3

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Natalija [7]
Answer: Substitution Property

Think of "substitute" as in replacement. For example, your substitute teacher is a (<span>temporary) </span>replacement for your current teacher. In this case, we're replacing "m4" with "20 degrees".
6 0
3 years ago
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The population of London is currently estimated at 8.156 million.
Mrrafil [7]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
A collection of coins consists of nickels, dimes, and quarters. There are
iragen [17]

Answer:

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Step-by-step explanation:

We are given relations between the number of each kind of coin and the number of quarters. So, it is convenient to write an equation in terms of the number of quarters.

Let q represent the number of quarters. The number of nickels is 3 more than that, so is (q+3). The number of dimes is 6 more than the number of quarters, so is (q+6). The total value of the coins, in cents, is ...

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  40q +75 = 315 . . . . . . . . . . . . . . collect terms

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  q = 6 . . . . . . . . . divide by 40

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  q +6 = 12 . . . number of dimes

There are 9 nickels, 12 dimes, and 6 quarters in the collection.

3 0
2 years ago
Plz help me I don't know what to do!!!!!!
Nikolay [14]

The answer for the first question is the second option.

The answer for the second question is 192

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Step-by-step explanation:

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