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emmasim [6.3K]
3 years ago
15

Scientists estimate that about 14 million species exist, and only about 50% of them have been studied and named. About how many

species have been studying your name?
Mathematics
2 answers:
Margarita [4]3 years ago
6 0

Answer:

about 7 million

Step-by-step explanation:

50% of 14million

0.50*14000000

7000000

ra1l [238]3 years ago
5 0

Answer:

About 7 million

Step-by-step explanation: because half of 14 is 7 then add the million to it

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Trey evaluated 12/15 + 1/10 and got the answer of 13/25. which statement is true about this answer?
Ganezh [65]

Answer:

Option C. His answer is not correct, because the same can not be less than either attend

Step-by-step explanation:

we have

\frac{12}{15}+\frac{1}{10} =\frac{13}{25}

we know that

\frac{12}{15}=0.8

\frac{1}{10}=0.10

\frac{13}{25}=0.52

substitute

0.80+0.10=0.52 ----> is not true

therefore

His answer is not correct, because the same can not be less than either attend

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Answer:

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Step-by-step explanation: hope this helps :)

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3 years ago
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Fifteen less than twice a number is 21.<br> What is the missing number? |
Vikentia [17]

Answer:

2y - 15

Step-by-step explanation:

well 15 LESS than TWICE a number. okay so let’s start off by making a variable for the unknown number.... y. the variable is y. so now we have to think, TWICE that number, but we don’t know the number.

Now that we have the variable and we know it has to be doubled, let’s start off making the first half... we can out that into 2y. which is 2 multiplied by the unknown number.

now that we have the first half done, we have to take the 15 less. Less can mean  or subtract in this kind of situation. but for this certain scenario, it will be subtraction. so the equation would be 2y - 15.

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Alenkasestr [34]
Linear functions can be written in the form y=mx+b, where:
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B

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