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VLD [36.1K]
3 years ago
10

How do you change 21.5 into a fraction

Mathematics
2 answers:
NikAS [45]3 years ago
5 0
21.5 means 21 and 5 tenths and is read that way.

21.5 = 21 5/10 =(21*10 + 5) /10 = 215/10 = 43/2 in simplest terms
Ulleksa [173]3 years ago
4 0
21.5 = 21 1/2
decimal = fraction
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Jake wants to distribute 543 marbles equally among 7 of his friends . In what place is the first digit of the question?
GrogVix [38]
I don't know if I understand this question that well, but if I am right, the first digit of the question you are asking is 5, and it is in the hundreds place. If this is not what you mean, then can you put more description in this question please?
3 0
3 years ago
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sladkih [1.3K]
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3 0
3 years ago
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mixer [17]

Answer:

<h3>x = 1.54 or x = - 4.54 to 2 decimal places</h3>

Step-by-step explanation:

x² + 3x - 7 = 0

Using the quadratic formula

a = 1 b = 3 c = - 7

x =  \frac{3 ± \sqrt{ {3}^{2} - 4(1)( - 7) }  }{2(1)}  \\  x =  \frac{ - 3± \sqrt{9 + 28} }{2}  \\  \\ x =  \frac{ -3 ± \sqrt{37} }{2}  \\  \\ x =  \frac{ - 3 +  \sqrt{37} }{2}  \:  \:  \:  \:  \: or \:  \:  \: x =  \frac{ - 3 -  \sqrt{37} }{2}  \\  \\ x = 1.54 \:  \:  \: or \:  \: x =  - 4.54

Hope this helps you

7 0
3 years ago
At the car dealership, they keep the ratio
Mashutka [201]

Answer

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Step-by-step explanation:

8:3 is the ratio which means that you multiply that (8x3) is 24 - 11 because 2/9/ 2+9 = 11 and 24-11 is 13 so there is your answer

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Answer:

1

Step-by-step explanation:

angles on a straight line are 180 so u do 180 minus 47 gives u 133

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3 years ago
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