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Margarita [4]
3 years ago
9

Is 9/36 a rational number?

Mathematics
1 answer:
AURORKA [14]3 years ago
5 0

Answer:

yes, it is

Step-by-step explanation:

a rational number is any number that can be expressed as a quotient or fraction

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The exact radius of a circle with a circumference 36 meters.
Lelechka [254]
Circumference = pi x diameter
So for this it is
36 = 3.14 x d (d = r x 2)
36 / 3.14 = 2r
11.46 = 2r
11.46 / 2 = r
5.73 = r
7 0
3 years ago
How do you factor this trinomial? :
Nezavi [6.7K]
The pic is blurry, but looks like 18x²-21x-15
(3x-5)(6x+3) is the factored form. 
3 and 6 are the factors of 18
-5, 3 or -3, 5 are the factors of -15
I line them up like this
3   -5
6    3
then I multiple them diagonally: 3*3=9, -5*6=-30, the sum of 9 and -30 is exactly -21, the coefficient for x. (If the sum doesn't make -21, I'd switch -5 and 3, or change to -3 and 5 to try again.) 
so the factored form is (3x-5)(6x+3)


5 0
4 years ago
Jack is conducting a survey of students in the school. Of the students, 549 prefer vanilla ice cream and 671 prefer chocolate ic
adelina 88 [10]

Answer:

45% of students prefer vanilla ice cream.

Step-by-step explanation:

549 + 671 = 1220 total students

549 / 1220 = 0.45 or 45%

7 0
3 years ago
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Susan can swim 105 meters in 70 seconds. At this rate, how far can she swim in 30 seconds?
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59 meters kkStep-by-step explanation:    

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3 years ago
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Christian has a cookie recipe that yields four dozen cookies and calls for 2 1/4 cups white sugar and 3/4 cup brown sugar.cif ch
Paha777 [63]

The ingredients given are for 4 dozen cookies; however, Christian only want to make one dozen, meaning he requires only 1/4 the ingredients.

1/4 of 2 1/4 cups of while sugar is found the following way.

First, we write 2 1/4 as an improper fraction

2\frac{1}{4}=2+\frac{1}{4}=\frac{9}{4}

1/4 of this is

\frac{9}{4}\times\frac{1}{4}=\frac{9}{16}

Hence, Christian requires 9/16 cups of white sugar.

Similarly, the 1/4 of 3/4 cups of brown sugar is

\frac{1}{4}\times\frac{3}{4}=\frac{3}{16}

Hence, Chrisitan requires 3/16 cups of brown sugar.

Therefore, the total cups of sugar required is the sum of

\frac{3}{16}+\frac{9}{16}=\frac{12}{16}=\frac{3}{4}

3/4 cups of sugar.

7 0
1 year ago
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