3 years ago

1¿cuantos cubos tengo si una figura tiene de base 6,altura 4 y ancho 2?

Mathematics

1 answer:

34kurt3 years ago

4 0

1: 48 cubos

2.150 cubos

3.63

4.14

Explicación:

Prácticamente es multiplicar los 3 numeros.

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enot [183]

Ok done. Thank to me :>

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2 years ago

Trevor solved the system of equations below. What mistake did he make in his work? 2x + y = 5 x − 2y = 10 y = 5 − 2x x − 2(5 − 2

Arturiano [62]

$2x+y=5 \\
x-2y=10 \\ \\
y=5-2x \\
x-2(5-2x)=10 \\
x-10+4x=10 \\
5x-10=10 \\
\boxed{5x=0} \Leftarrow \hbox{the mistake, it should be 5x=20} \\
x=0 \\ \\
2(0)+y=5 \\
y=5$

If 2x+y=5, then y=5-2x, so he substituted 5-2x correctly.
x+4x=5x, so he combined like terms correctly.
If 5x-10=10, then 5x=10+10 -> 5x=20, so he subtracted 10 from the right side instead of adding 10 to the right side.

The answer is C.

Here's the correct solution:
$2x+y=5 \\
x-2y=10 \\ \\
y=5-2x \\
x-2(5-2x)=10 \\
x-10+4x=10 \\
5x-10=10 \\
5x=10+10 \\
5x=20 \\
x=\frac{20}{5} \\
x=4 \\ \\
y=5-2x \\
y=5 - 2 \times 4 \\
y=5-8 \\
y=-3 \\ \\
(x,y)=(4,-3)$

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3 years ago

What is the value of the expression below when x=8? 10x+5

DaniilM [7]

1. Plug in 8 into x.
The equation will be 10(8)+5
2. Solve multiplication
80+5
3. The answer is 85! Hope this helped <3

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3 years ago

Which property of equality could be used to solve x - (-6) = 18?

oksian1 [2.3K]

Answer:subtraction property

Step-by-step explanation:

Two a negative and a negative makes a positive so it would be x+6=18 so u do the opposite on both sides so it would be subtraction

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3 years ago

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sammy [17]

Answer:

Step-by-step explanation:

so first do 120 divided by 4 is 30. Then multiply it by 3 to get 90.

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2 years ago

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