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Alex787 [66]
3 years ago
6

Ralf and Susie share $57 in the ratio 2:1. (a) Calculate the amount Ralf receives.

Mathematics
2 answers:
Mnenie [13.5K]3 years ago
4 0

Answer:

<h3>.Total ratio 2+1 = 3</h3>

<h3><u>Ralf</u><u> </u></h3>

<h3>2/3 × 57</h3><h3>Divide 57 by 3</h3><h3>( 2 × 19)</h3><h2><u>=</u><u> </u><u>3</u><u>8</u><u>.</u><u>.</u><u>.</u><u>.</u></h2><h3><u>Ralf</u><u> </u><u>recieves</u><u> </u><u>$</u><u> </u><u>3</u><u>8</u></h3>
Semmy [17]3 years ago
4 0

Answer:

Raff = 38

Suzie = 19

Step-by-step explanation:

Raff gets 2x

Suzie gets x

2x + x = 57 dollars

3x = 57 dollars

x = 19 dollars

2x = 38 dollars

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2 years ago
PLEASE HELP, please write it out in the system of equations (step by step)
gizmo_the_mogwai [7]

Answer:

{x,y}={-2,3}

Step-by-step explanation:

[1]    2x + y = -1

  [2]    x - 2y = -8  <------- given linear equations

Graphic Representation of the Equations : ----> given in attatchment

y + 2x = -1        -2y + x = -8  < ----- point where they connect is shown in graph

Solve by Substitution :

// Solve equation [2] for the variable  x

 [2]    x = 2y - 8

// Plug this in for variable  x  in equation [1]

  [1]    2•(2y-8) + y = -1

  [1]    5y = 15

// Solve equation [1] for the variable  y

  [1]    5y = 15

  [1]    y = 3

// By now we know this much :

   x = 2y-8

   y = 3

// Use the  y  value to solve for  x

   x = 2(3)-8 = -2

Solution :

{x,y} = {-2,3}

7 0
2 years ago
Read 2 more answers
Is this sequence arithmetic,<br> geometric<br> or neither?<br> 3.5. -4, -7.5...
kvasek [131]

Answer:

Neither

Step-by-step explanation:

If the sequence was geometric, each term would be multiplied by the same multiplier to get to the next one. We can check if the multiplier is the same by taking a term and dividing it by the term before it. For example,

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The multiplier between the terms aren't the same so it's not geometric.

For arithmetic, the distances between each term would be the same, and we can take the same idea from the geometric sequence, but use subtraction instead of division

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3 years ago
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hram777 [196]

Answer: one billion 1,000,000,000 1 x 109

ten billion 10,000,000,000 1 x 1010

one hundred billion 100,000,000,000 1 x 1011

one trillion 1,000,000,000,000 1 x 1012

Step-by-step explanation:

So sorry if this did not help!

5 0
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goldenfox [79]

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