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Brut [27]
3 years ago
11

8x - 5 = -29 Find x

Mathematics
1 answer:
Masja [62]3 years ago
7 0

If you want to find x first, you would have to do:

8x-5=-29

8x-5+5=-29+5

I added 5 to both sides so i can leave 8x by itself. Now by simplifying:

8x=-24

8x/8=-24/8

I divided both sides by 8 so I can leave x by itself to get the answer:

x=-3


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vesna_86 [32]

Answer: -1 because - 13 - 11 will = -1

5 0
3 years ago
Find the length of the missing side of the triangle below
True [87]

Answer:

x = 28.8

Step-by-step explanation:

Using the Sine rule in the triangle then

\frac{43}{sin87} = \frac{x}{sin42} ( cross- multiply )

x × sin87° = 43 × sin42° ( divide both sides by sin87° )

x = \frac{43sin42}{sin87} = 28.8

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4 years ago
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8 0
3 years ago
What's the next number? 12 21 23 32 34 43
fiasKO [112]
The correct answer is 45. The rule to the numbers is x + 9 and then x + 2.

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32 + 2 = 34
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Hope this helps!
4 0
4 years ago
Seis albañiles hicieron una barda de 180 m2 durante 12 días. ¿Cuántos días necesitaran 5 albañiles para levantar una barda de 10
emmainna [20.7K]

Answer:

8 dias

Step-by-step explanation:

Primero tenemos que averiguar cuantos m2 pueden levantar los seis albañiles en 1 dia. Esto lo calculamos dividiendo los 180m2 por los 12 dias que les llevo hacerlo.

180 / 12 = 15 m2 por dia

Ahora tenemos que dividir este numero por los 6 albañiles para calcular cuantos m2 hace 1 albañil por dia

15 / 6 = 2.5

Ahora tenemos que multiplicar este m2 por los 5 albañiles que pide la pregunta

5 * 2.5 = 12.5 m2 por dia

Finalmente, necesitamos dividir los 100 m2 por los 12.5 m2 que pueden hacer los 5 albañiles por dia.

100 / 12.5 = 8 dias

5 0
3 years ago
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