4 years ago

All of the following are equivalent except___. 7x^3,4x+3x,(4+3)x,7x

Mathematics

2 answers:

Gnoma [55]4 years ago

7 0

the first one is diffrent all of them equal 7x but the first one doesnt

Paha777 [63]4 years ago

6 0

7x^3 is not equivalent to the other varieties of 7x

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Y = 2x + 3 find f(0)

vichka [17]

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In 1979, there were 2.4 million licensed registered nurses in a country. This number increased to 3.6 million in 2012. What is t

Dennis_Churaev [7]

Answer:

It is a 50% increase

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3 years ago

David wants to pack 574 cereal bars into bags of 10 and bags of 8 the number of bags of 8 is 2 more than the bags of 10. How man

BabaBlast [244]

Answer: Number of bags of 8. = 33

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Step-by-step explanation:

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y = Number of bags of 10.

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$x=y+2$ (ii)

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$8(y+2)+10y= 574\\\\\Rightarrow\ 8y+16+10y=574\\\\\Rightarrow\ 18y=574-16\\\\\Rightarrow\ 18y=558\\\\\Rightarrow\ y=\dfrac{558}{18}\\\\\Rightarrow\ y=18$

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Hence,

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Here, the answer is 120

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