nilai rata rata ujian sekelompok siswa yang berjumlah 30 orang adalah 65.jika tiga orang siswa dari kelompok ini yang mendapat nilai 90,85, dan 75 tidak dimasukkan perhitungan rata rata itu,maka nilai rataan ujian akan menjadi?
Answer (4)
To convert decimals into fractions, see how many numbers are after the decimal place. Since the spots go from- Ten- Hundred- Thousand- Ten thousand- Hundred thousand- Million, and so on. 0.14 would be 100 since it has 2 numbers after the decimal spot and hundred is the 2nd number in the spots.
Now put 0.14 above 1, like a fraction.
0.14 y x 1
Then multiply both numbers by 100, since, as earlier said, there are 2 numbers from the decimal.
You should have 14 over 100, or 14 y x 100 . Since your decimal is negative, just put the negative sign next to it. If it were positive, no negative sign.
To express the decimal -0.14 as a fraction or mixed number in simplest form, we follow these steps:
First, recognize that -0.14 has two decimal places, which puts the 14 over 100 when converted to a fraction.
So, we write -0.14 as 100 − 14
To simplify the fraction, find the greatest common divisor (GCD) of 14 and 100, which is 2.
Divide both the numerator and the denominator by 2 to simplify the fraction.
The simplified fraction is, therefore 50 − 7 , as -14 ÷ 2 equals -7, and 100 ÷ 2 equals 50.
The simplest form of the decimal -0.14 as a fraction is 50 − 7 .
The decimal -0.14 can be expressed as the fraction -\frac{7}{50} in simplest form. This involves identifying how many places are after the decimal to determine the denominator, converting the decimal to a fraction, and then simplifying it. The negative sign is retained from the original decimal.
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Jawaban:62,96Penjelasan dengan langkah-langkah:[tex] \tt = \frac{30 \times 65 - (90 + 85 + 75)}{30 - 3} [/tex][tex] \tt = \frac{1.950 - 250}{27} [/tex][tex] \tt = \frac{1.700}{27} [/tex]= 62,96[tex]\boxed{ \red{ \boxed{\pink{\mathcal{M \frak{ ilana} \purple{ \tt01}}}}}} [/tex]
