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Inessa [10]
3 years ago
15

Please help me idk this ???

Mathematics
2 answers:
nydimaria [60]3 years ago
7 0

Answer:

64

Step-by-step explanation:

16/100 = x / 400

Cross multiply:-

100x = 16*400

x = 6400 / 100

= 64

Kamila [148]3 years ago
5 0

The answer is 64 because you multiplied 100 by 400 so you would have to do the same thing with 16 so 16 multiplied by 4 is 64
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12 is 90% of what number?<br><br><br> with steps
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Answer:

<h3><u>Let's</u><u> </u><u>understand the concept</u><u>:</u><u>-</u></h3>
  • Here 12 is 90% of a number.
  • So we can say that 90% of That number is 12 .
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<h3><u>Solution</u><u>:</u><u>-</u></h3>

Let,

the number=x

<h3>According to the question ,</h3>

{:}\longrightarrow\sf 90\% \:of \;x=12

  • We know 90%=90/100
  • so add it

{:}\longrightarrow\sf {\dfrac {90}{100}}\times x=12

{:}\longrightarrow\sf {\dfrac {90x}{100}}=12

  • Now use cross multiplication method

{:}\longrightarrow\sf 90x=12\times 100

{:}\longrightarrow\sf 90x=1200

  • Now interchange sides .

{:}\longrightarrow\sf x={\dfrac {1200}{90}}

{:}\longrightarrow\sf x={\dfrac {200}{15}}

  • Answer will come in decimals so we take approximate value.

{:}\longrightarrow\sf x=13.3

{:}\longrightarrow\sf x=approximately \:13

\thereforeThe number is 13.

6 0
2 years ago
Mrs. Whatsit spends a lot of time sleeping. Last week she spent 159,547 seconds sleeping. This week she slept some more. If she
gulaghasi [49]

Answer:

142,853

Step-by-step explanation:

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142853

4 0
3 years ago
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On a Venn diagram, a value that represents what two circles have in common is written outside of both circles. True or false
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Answer: False. 

Values that are in common with both circles will be inside both circles. These values will be in the overlapping region of the two circles. 
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Answer:

28π is the circumference

Step-by-step explanation:

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3. A man needed money for college. He borrowed $6,000 at 14% simple interest per year. If he paid $420 interest, what was the du
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Answer: half year

Step-by-step explanation:

The formula to find the simple interest is given by :-

I=Prt, , where P is the principal amount , r is the rate of interest and t is the time in year.

Given : I=420 ; r=14%=0.14 and P =$6000

Then, we have the following equation :-

420=6000\times0.14 \times t\\\\\Rightarrow\ t=\dfrac{420}{6000\times0.14}=0.5

It means the duration of the loan is half year .

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