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IceJOKER [234]
3 years ago
12

Joe walked 4/9 of a mile in 4/5 of an hour. What is his unit rate in miles per hour? 4/9 over 4/5 = 5/9 mile per hour 4/5 over 4

/9 = 1 and 4/5 miles per hour 4/9 over 4/5 = 1 and 4/5 miles per hour 4/5 over 4/9 = 5/9 mile per hour
Mathematics
2 answers:
Vilka [71]3 years ago
8 0
<span>divide 4/9 by 4/5 is your answer</span>
Yakvenalex [24]3 years ago
6 0
Joe walks at approximately .56 mph.

4/9= .444...
4/5= .8

.444 miles /.8 hours= x miles /1 hour
x= .56 mph
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What number is 5% of 46?
saveliy_v [14]
46 x 0.05, since 5% = 0.05 (5 / 100 = 0.05)

46 x 0.05 = 2.3


<span>7/12 is 58.33% </span>
<span>How do we change fractions to percents? </span>
<span>The steps are too simple. </span>

<span>First, divide the numerator (the number at the top of the fraction) by the denominator (the number below the fraction). </span>
<span>In the case above, 7 is the numerator and 12 is the denominator. </span>

<span>So, 7 ÷ 12 = 0.58333 </span>

<span>Then, multiply the result by 100. 0.5833 x 100= 58.33 </span>

<span>Finally, add the percent (%) sign to the result. </span>

<span>Therefore, 7/12 is 58.33%.  <span> </span></span>

6 0
3 years ago
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Need help ! <br><br> Which equation could be represented by the number line?
DanielleElmas [232]

Answer:

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Step-by-step explanation:

7 0
3 years ago
A mixture of compounds X and Y in a 0.100-cm cell had an absorbance of 0.215 at 272 nm and 0.191 at 327 nm. Find [X] and [Y] in
Oksi-84 [34.3K]

Answer: The concentration of X is 7.13582\times 10^{-6} and the concentration of Y is 2.53159\times 10^{-5}.

Step-by-step explanation:

Since we have given that

At 272 nm, absorbance = 0.215

At 327 nm, absorbance = 0.191

As we have given that

                               Compound X             Compound Y

272                               16400                            3870

327                                3990                             6420

So, our equations becomes

16400C_1+3870c_2=0.215\\\\3990C_1+6420C_2=0.191

By solving these two equations, we get that

C_1=7.13582\times 10^{-6}\\\\C_2=2.53159\times 10^{-5}

Hence, the concentration of X is 7.13582\times 10^{-6} and the concentration of Y is 2.53159\times 10^{-5}.

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4 years ago
Add. (15w - 6x) and (6x + 20w)​
Lynna [10]

Answer:

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Step-by-step explanation:

15w-6x+6x+20w

collect like terms

15w+20w-6x+6x

=35w

8 0
3 years ago
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kifflom [539]

g \geqslant 5
A
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