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denis23 [38]
3 years ago
7

Is the equation always sometimes or never true . . 15+2x-4=9x+11-7x. . 2x+3(4x-1)=2(5x+3)+4x

Mathematics
1 answer:
IceJOKER [234]3 years ago
4 0
15 + 2x - 4 = 9x + 11 - 7x is always true. You can prove this by plugging in random values for x. I plugged in x = 0, (11=11), and x=1 (13=13). 

2x + 3(4x-1) = 2(5x+3) = 4x is never true. When you try to solve for x, the x disappears.

2x +12x - 3 = 10x + 6 + 4x

14x - 3 = 14x + 6

-3 = 6  Not possible.
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Miguel e nádia trabalham num escritório de contabilidade. A cada 45 minutos miguel vai á sala de café para relaxar um pouco, enq
Kazeer [188]

Responder:

3 horas

Explicação passo a passo:

Dado :

Miguel a cada 45 minutos

Nádia a cada 60 minutos

Número de horas que eles vão se ver no mesmo lugar:

Para fazer isso ;

Obtenha o menor múltiplo comum de 60 e 45

Múltiplos de:

45: 45, 90, 135, 180, 225.

60: 60, 120, 180, 240, 300.

O menor múltiplo comum de 45 e 60 é 180

° Assim, eles se verão no mesmo lugar após 180 minutos;

Número de horas = 180/60 = 3 horas

6 0
2 years ago
4^3 > 6^2 Is this right or not right if not what other sign needs to go there.
Bess [88]

Answer:

that is right

Step-by-step explanation:

because 4×4×4 equals 64 and 6×6 equals 37 so it is 4^3>6^2

6 0
2 years ago
Read 2 more answers
Binh has to write an 8-page report. If he has written 3/4 of his report so far, how many pages has he written?
Eva8 [605]

Answer:

6 pages

Step-by-step explanation:

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This is confusing to understand but that's how I solved it.

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What percent of female high school athletes continue their sport as a college (NCAA) student? Use the table below.
nlexa [21]

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Step-by-step explanation:

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Hope you could get an idea from here.

Doubt clarification - use comment section

8 0
2 years ago
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