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ehidna [41]
2 years ago
5

A pump moves 42 gallons in seven minutes. How many gallons per min

Mathematics
1 answer:
alisha [4.7K]2 years ago
3 0

Answer:

6

Step-by-step explanation:

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A) Rationalise the denominator of<br> 20/root 10<br> Give your answer in its simplest form.
denis-greek [22]

‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎\bigstar \boxed{\large\bf{\leadsto 2\sqrt{10}}}

__________________________________________

\large\bf{Here,}

‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎\large\bf{⟹\frac{20}{\sqrt {10}}}

❒ Multiply the numerator and denominator by \bf{\sqrt{10}}

‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎\large\bf{⟼\frac{20}{\sqrt{10}}\times\frac{\sqrt{10}}{\sqrt{10}}}

‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎\large\bf{⟼\frac{20\sqrt{10}}{(\sqrt{10})^2}}

‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎\large\bf{⟼\frac{20\sqrt{10}}{10}}

‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎‎‎ ‎ ‎\large\bf{⟼2\sqrt{10}}

5 0
2 years ago
Read 2 more answers
Solve x+2=1/2x-1 Please hurry!
vfiekz [6]

Answer:

<h2>X = - 6</h2>

Step-by-step explanation:

<h2><u />x + 2 = 1/2x - 1</h2>

2 + 1 =  \frac{1}{2}x - x

3 =  -  \frac{1}{2}x

x =   \frac{ - 3}{ \frac{1}{2} }  \\ x =   \frac{ - 6}{1}   \\ x =  - 6

<em>Hope</em><em> </em><em>this</em><em> </em><em>helps</em><em> </em><em>:</em><em>)</em><em> </em>

8 0
2 years ago
The following chart shows a store's records of sales of stuffed toys for two months
Dmitry_Shevchenko [17]

Answer:

None of the above answers

Step-by-step explanation:

Form a table as shown

Months         Teddy Bears    Rabbits     Cats    Horses    Others    Totals toys

September      225                275           245      260          199        1204

October           346                 308           186      297           285       1422

Trends

Cats decreased from 245 to 186

Others increased from 199 to 285,

285-199 = 86

percent increase was = increase/original quantity *100

86/199 *100 =43.22%

Total number of stuffed toys increased from 1204 to 1422

percent increase = (1422-1204)/1204 *100 = 218/1204 *100 =18.11%

7 0
3 years ago
Read 2 more answers
Find m21. <br> 103°. 13° 77°. 26°​
barxatty [35]
If you mean find the one that has the number 1 on it your answer is 13.
90+77+x=180
167+x=180
X=13
8 0
3 years ago
If the function f(x)=3x^2-5 and has the domain {-4,-3,1,5}, what is its range?
Paraphin [41]
The answer would be C. Hope the picture helps.
8 0
3 years ago
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