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grandymaker [24]
3 years ago
14

If you are answering the questions:Evaluate the expressions and dont do #16

Mathematics
1 answer:
Mashcka [7]3 years ago
8 0
1. 3p
2. -b+3
3. 6x
4. -3p
5. -4v
6. R
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Fiona y sus amigas fueron a una tienda de batidos. Pidieron tres batidos de fresa y dos batidos de proteínas por un total de $ 2
jeka94

Answer:

Un batido de proteínas cuesta $ 5,25.

Step-by-step explanation:

El sistema de ecuaciones descrito al final del enunciado coincide con lo descrito al comienzo del mismo, de modo que podemos concentraron casi exclusivamente en la resolución del sistema en cuestión, la cual se describe a continuación:

Este es el sistema a resolver:

x + 4\cdot y = 25,50 (1)

3\cdot x + 2\cdot y = 24,00 (2)

Donde x es el coste de un batido de fresa y y corresponde al coste de un batido de proteínas:

1) Despejamos x en (1):

x = 25,50 - 4\cdot y

2) Eliminamos x en (2):

3\cdot (25,50 - 4\cdot y) + 2\cdot y = 24,00

76,50 - 12\cdot y +2\cdot y = 24,00

3) Simplificamos y despejamos y:

10\cdot y = 52,50

y = 5,25

Un batido de proteínas cuesta $ 5,25.

7 0
3 years ago
Translate the following statement into an equation and solve for y: "y divided by 27 is-18."​
Yanka [14]

Answer:

y= -486

Step-by-step explanation:

We first translate the statement into an equation:

\frac{y}{27}=-18

Then we simplify:

y= -486

8 0
3 years ago
Read 2 more answers
The three trigonometric functions can be used to calculate unknown side lengths and angles in which type of triangle(s)?
Mama L [17]
Triangles with a 90 degree angle. We use the sine, cosine and tangent functions to determine the missing angles and sides.
5 0
3 years ago
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Determine the kinetic energy of a 100-kg roller coaster car that is moving with a speed of 20.0/ms.
rjkz [21]

Answer:

The kinetic energy is 20,000\ J

Step-by-step explanation:

The kinetic energy of a body is defined as:

k = \frac{1}{2}ms ^ 2

Where <em>m</em> is the mass of the roller coaster car

<em>s</em> is the speed and <em>k</em> is the kinetic energy

We know that s = 20\ m/s

m = 100\ kg

Then the kinetic energy of the roller coaster car is:

k = \frac{1}{2}(100)(20) ^ 2\\\\k = 50(20) ^ 2\\\\k = 50 * 400\\\\k = 20,000\ J

3 0
3 years ago
Plz Help
soldier1979 [14.2K]

the answer is B)

we can check by multiply them

8 0
3 years ago
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