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Mariulka [41]
3 years ago
11

What is 8.57 in fraction or mixed number as a decimal

Mathematics
1 answer:
aivan3 [116]3 years ago
8 0
To write 8.57 as a fraction you have to write 8.57 as numerator and put 1 as the denominator. Now you multiply numerator and denominator by 10 as long as you get in numerator the whole number.
8.57 = 8.57/1 = 85.7/10 = 857/100

And finally we have: 
8.57 as a fraction equals 857/100

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A school for learning foreign languages has 72 students who learn German, and 54 of those students also learn Russian. There are
marusya05 [52]

Answer:

We are given a information that:

A school for learning foreign languages has 72 students who learn German, and 54 of those students also learn Russian. There are 12 students who do not learn German but learn Russian, and 10 students do not learn either German or Russian.

Based on this information we can make our table as:

                Learn German        don't learn German      Total

LR               54                               12                                66

DNLR           18                                10                                28

Total           72                               22                               94

<em>DNLR represent do not learn Russian and LR represent learn Russian.</em>

Now for finding the conditional relative frequency table we divide each of the quantities by the total sum of each row i.e. first row is obtained by dividing by 66, second by dividing by 28 and third by dividing by 94 to obtain the table as:

                Learn German        don't learn German      Total

LR              0.82                             0.18                              1

DNLR          0.64                             0.36                             1

Total           0.77                              0.23                            1

5 0
3 years ago
Find the first 4 terms for the given function. ƒ (n) = n^3 - 1
nikitadnepr [17]

Answer:

0,7,26, and 63

Step-by-step explanation:

4 0
3 years ago
Plz help me out in that because i don’t what is the value of 5n+9+n
valentina_108 [34]
No they’re not equivalent because for 3(2n+9) when you distribute the 3 you get 6n+27 & 5n+9+n equal to 6n+9 when you combine like terms (add the n’s).
4 0
3 years ago
A model of a car uses a scale of 2 1/4 inches = 3 feet. If the model is 14 inches long, what is the actual length of the car?
MatroZZZ [7]

Answer:

36" / 2.25"  * 14 = 16 * 14" = 224 inches =

18.666666 feet = 18 feet 8 inches

Step-by-step explanation:

6 0
3 years ago
find the measure of the vertex anlge of an isosceles triangle if the measure of one base angle is 36°
atroni [7]
Because it is an isosceles triangle, the two base angles have to be the same, so
36°+36°=72°
angles in all triangles add up to 180°, so
180°-72°=108°
unknown=108°
5 0
3 years ago
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