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Lesechka [4]
3 years ago
6

1 2/3 × 2 1/3= in fraction form

Mathematics
2 answers:
Ray Of Light [21]3 years ago
7 0
First convert them into improper fractions.

\sf 1\dfrac{2}{3}\times 2\dfrac{1}{3}

To convert into an improper fraction, keep the denominator the same, multiply the denominator to the whole number and add it to the numerator.

\sf 3\times 1+2=5
\sf 3\times 2+1=7

So we have:

\sf\dfrac{5}{3}\times\dfrac{7}{3}

Now multiply the numerators and denominators together:

\sf\dfrac{35}{9}

Revert back to mixed number form. Nine goes into thirty-five three times.

9 * 3 = 27
35 - 27 = 8

So we will have 3 and 8/9 left over or \boxed{\sf 3\dfrac{8}{9}}
REY [17]3 years ago
6 0
The answer is 3 8/9 because you turn it into a mixed number which is 5/3*7/3. Once you multiply you get 35/9. Since it is an improper fraction you turn it into a mixed number by dividing 35/9. In the end, you get 3 8/9 as your final answer. 
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Prove or disprove that if a and b are two rational numbers, then a b is also a rational number.
Harman [31]
That is not correct, In a quotient or any type of equation numbers are considered rational number when they have repeating values, for this we will use {x} for example when comparing repeating values.


So if we have {a} + {b} from a equation prior to obtaining these values then we will take {a} + {b} and add {c} we will end up with {a} + {b} + {c}. We are using addition for an example.


{c} would only be a rational if it as well had repeating {x} values 

{x}=Repeating value
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4 years ago
Unit 4 Ratio, Proportions, &amp; Percent Homework<br> 7th Grade
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3 0
3 years ago
Help me for 50 points
ad-work [718]
For the first one we will use the Law of Sines.  First off, though, we need to find angle C's measure.  By the Triangle Angle-Sum Theorem, the angles of a triangle all add up to equal 180.  Therefore, angle C is 180-15-20 which is 145 degrees.  Now we will set up the Law of Sines ratios.  \frac{sin145}{10}= \frac{sin15}{BC}.  Solving for BC, we have  BC= \frac{10sin15}{sin145}  and on our calculators we find that BC is 4.5, last choice above.  For the second one, the sin ratio is the side opposite the reference angle over the hypotenuse.  The cos ratio is the side adjacent to the reference angle over the hypotenuse.  The side opposite angle R is r, and the hypotenuse is q, so the sin R = r/q.  For the cos P, the side adjacent to angle P is r, and the hypotenuse is q, so the cos P = r/q.  Obviously, those 2 ratios are the same, so your choice is the very first one given.
5 0
3 years ago
Read 2 more answers
7(10 + 5) so I would add 10 plus 5 and multiply it by 7?
Nitella [24]
That is what you would do. How ever you could also distribute the 7 to both the 10 and the 5 and then add the two numbers together. Either way you should get the same number.
6 0
3 years ago
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What is the maximum possible value of a sine ratio? In two or more complete sentences, explain your answer.
VMariaS [17]
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6 0
4 years ago
Read 2 more answers
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