What is x-2y=-1 and 2y+y=4 using elimination step by step

Mathematics

2 answers:

Alja [10]2 years ago

8 0

Answer: is it supposed to be 2y+y=4?

attashe74 [19]2 years ago

5 0

2y+y something like that i think

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The population of a city has decreased by 38% since it was last measured. If the current population is 27,900, what what the pre

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Answer:

The population of a city has decreased by 38% since it was last measured. If the current population is 27,900 .Previous population of city was 45000.

Solution:

Given that current population of city is 27900.

Also, population of a city has decreased by 38% since it was last measured.

Let assume that population of city when it was last measured = x

Decreased of 38% means x-38% of x . we can write this as,

$=x-\frac{38}{100} \times x$