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3 years ago

2 + 2 - 1I really need help

Mathematics

1 answer:

shutvik [7]3 years ago

5 0

Answer:

Step-by-step explanation:

Break the problem up into two

Ignore the -1 for now

2+2=4 because if you separate 2 and 2, you get four ones, therefore it's four

Now that you have four, subtract 1

And you got 3

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spayn [35]

Answer:

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3 years ago

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

Varvara68 [4.7K]

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,

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

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

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So current population is $\frac{31 x}{50}$

Equating above expression to the given value of current population, we get

$\frac{31 x}{50}=27900$

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x=45000

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3 years ago

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Neporo4naja [7]

Answer:

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3 years ago

An average African elephant weighs about 9,072 pounds. How is this number written in scientific notation?

qwelly [4]

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Step-by-step explanation:

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3 years ago

2 + 2 - 1I really need help​

2 + 2 - 1I really need help