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podryga [215]
3 years ago
13

What is 3 1/2 - 1 5/9

Mathematics
2 answers:
jek_recluse [69]3 years ago
8 0

Answer: 2 1/18

Step-by-step explanation:

Sergeu [11.5K]3 years ago
5 0

Answer:

35/18

Step-by-step explanation:

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A zookeeper weighed an African elephant to be 9x10^3 pounds and an African lion to be 4x10^2 pounds. How many times greater is t
maria [59]
Answer:  22.5 .  The weight of the elephant is "22.5 times greater" than                              the weight of the lion.
_________________________________________________________
Explanation:
_________________________________________________________

(weight of lion) * (x) = (eight of the elephant)  ;  Solve for "x" .
_____________________________________________________
   → Divide each side of the equation by "(weight of lion)" ;
  to isolate "x" on one side of the equation ; and to solve for "x" ;
_________________________________________________________
    
   → (weight of lion)*(x) / (weight of lion) = (weight of the elephant) /
                                                           (weight of lion) ;
________________________________________________________
     →  x  = (weight of the elephant) / (weight of lion) ;
__________________________________________________________
     →  Plug in our "given values" ; and solve for "x" ;
__________________________________________________________
     →  x = (<span>9*10</span>³) / (4*10²) =  (9*10⁽³⁻²⁾) / 4  =  (9*10¹) / 4  ;
__________________________________________________________  
     →  x =  90 /4 = 25/2  = 22.5 ; which is our answer.
__________________________________________________________
4 0
3 years ago
If a common logarithm is written without a base, what base should be used in evaluating it?
Rzqust [24]
If there isn't a base, the base is 10 :)
7 0
3 years ago
Read 2 more answers
Solve by elimination <br> 3x - 2y = 4<br> x+4y=34
Xelga [282]

Answer:

x= 6

y= 7

Step-by-step explanation:

multiply top by 2 then eliminate

4 0
3 years ago
Solving for systems: {y=3x+7 &amp;     y=5x-7
steposvetlana [31]
\left\{\begin{array}{ccc}y=3x+7\\y=5x-7\end{array}\right\\\\substitute:\\\\5x-7=3x+7\\5x-3x=7+7\\2x=14\ \ \ \ /:2\\x=7\\\\y=3\cdot7+7=21+7=28\\\\Answer:x=7\ and\ y=28.
8 0
3 years ago
Read 2 more answers
16 ÷ 22 + (6 x 2) - 8
stepladder [879]
I did the PEMDAS method (P= parentheses, E= exponents, M= multiplication, D = Division, A= addition, S = subtraction.)

First I did what’s inside the parentheses, (6x2) and got 12.

Then I divided 16 by 22 and received 0.72.

I added 0.72 with 12 and the result was 12.72.

Last step was to subtract 12.72 - 8 and that equals 4.72
3 0
3 years ago
Read 2 more answers
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