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bezimeni [28]
3 years ago
15

Steps for solving 3x+18=54 are shown explain how step 1 helps solve the equation

Mathematics
1 answer:
Dennis_Churaev [7]3 years ago
4 0

Answer:

The answer is x=12.

Step-by-step explanation:

First, to solve this equation you need to isolate the x variable. To isolate the variable, you must, subtract the other term from both sides. Subtracting 18 from both sides, you are left with 3x = 36. Since 3 times x = 36, dividing both sides by 3 gets you, x=12.

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Simplify 4.2^-3 • 5.1^2 • 4.2^4 • 5.1^3
rewona [7]

Answer:

Hope this helps

Step-by-step explanation:

Simplify the expression.

14491.060542

3 0
3 years ago
Read 2 more answers
8. Calculate the length of r or st
9966 [12]

9514 1404 393

Answer:

  30 miles

Step-by-step explanation:

The Law of Sines is used for this purpose. The angle at R is the difference ...

  180° -(23° +34°) = 123°

Then the length r satisfies ...

  ST/sin(R) = RT/sin(S)

  ST/sin(123°) = (20 mi)/sin(34°)

  ST = (20 mi)sin(123°)/sin(34°) ≈ 30.00 mi

The length of r or ST is 30 miles.

4 0
3 years ago
Ayuda con esto tengo muchos deberes y nececito terminarlos ahora, por favor ayuda :( .María y Nancy son vecinas, y todas estas s
Alex Ar [27]

Answer:

Nancy gastó 8,58 dólares.

Step-by-step explanation:

Para calcular cuánto dinero gastó Nancy, debemos hallar la relación entre Nancy y María, tal como sigue:

M = 3N    (1)

En donde M es por María y N por Nancy

En la relación de la equación (1) tenemos que el dinero que gastó María es 3 veces lo que gastó Nancy, tal como dice el enunciado.

Entonces, podemos hallar ahora cuánto gastó Nancy:

N = \frac{M}{3} = \frac{25,75}{3} = 8,58

Por lo tanto, Nancy gastó 8,58 dólares.  

Espero que te sea de utilidad!

3 0
3 years ago
Eric records a measurement in cubic inches. For which type of problem would this measurement be appropriate?
Sveta_85 [38]

Answer: c

Step-by-step explanation:

8 0
3 years ago
The radius of the Morgan family’s circular swimming pool is 8 feet what is the area of the pool cover the Morgan’s use to cover
suter [353]
The working out would be-
Pi x radiussquared
Pi x 64 = 201.0619298297468
Rounded to 2 decimal places =
201.06 feet2
4 0
3 years ago
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