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polet [3.4K]
3 years ago
9

Help me pleaseeeeeeeee

Mathematics
2 answers:
topjm [15]3 years ago
7 0

Answer:

x = 6, y = 3

Step-by-step explanation:

Let Sally's age be x and Tomas's age be y.

Sum of Sally's age plus twice Tomas's age: x + 2y = 12

Difference of Sally's age and Tomas's age: x - y = 3

Multiply the second equation by two and add it to the first equation to get

3x = 18, which means x = 6.

Plug 6 in for x in the second equation to get 6 - y = 3, which means y = 3.

natka813 [3]3 years ago
3 0

Answer:

9

Step-by-step explanation:

its EZY

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Can I get some help please?
mamaluj [8]

Answer:

1)   68

    / \

 4     17

  /\

2  2

68=2*2*17

2)  104

   /      \

 4      26

  /\       /\

2  2   2   13

104=2*2*2*13

3) 78

    /\

 2    39

        /\

      3   13

78=2*3*13

4) 225

    /\

  9   25

  /\    /\

 3 3  5 5

225=3*3*5*5

Second Part:

1)  45

    /\

  3  15

       /\

      3 5

45=3*3*5

2)  70

     /\

   2   35

          /\

        5  7

70=2*5*7

3)  54

     /\

   9   6

   /\    /\

  3 3  2 3

54=3*3*2*3

4)  126

      /\

    3   42

          /\

         3  14

               /\

              7  2

126=3*3*7*2

3 0
2 years ago
100 POINTS PLEASE ITS URGENT I HAVE 5 MINS COME ON PEOPLE I WILL ALSO MARK BRAINLIEST PLEASE
kaheart [24]

Answer:8

Step-by-step explanation: RSM :)

8 0
3 years ago
Read 2 more answers
Determine the effective annual yield for each investment.
Lyrx [107]
I think it’s B but don’t at me
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2 years ago
Which equation can be used to solve the problem?<br><br> 495 is 55 percent of what number?
fredd [130]

Answer:

55/100 * x = 495

Step-by-step explanation:

The unknown number is x.

55% of x = 495

55/100 * x = 495

3 0
2 years ago
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Steffie makes a scale drawing for a crate with the demensions 15 inches long by 12 inches wide. Her scale factor is 1:3. Brian m
rodikova [14]

Answer:

Dimensions → (5 inches × 4 inches)

Step-by-step explanation:

Scale factor used for the drawing by Steffie = \frac{1}{3}

Since, scale factor = \frac{\text{Dimension of the drawing}}{\text{Actual dimension}}

For Steffie,

Actual length of the crate = \frac{\text{Dimension of the drawing}}{\text{Scale factor}}

                                           = \frac{15}{\frac{1}{3}}

                                           = 45 inches

Actual width of the crate = \frac{12}{\frac{1}{3} }

                                         = 36 inches

Since Brian used the scale factor = \frac{1}{9}

Length of the drawing = Actual length × Scale factor

                                     = 45 × \frac{1}{9}

                                    = 5 inches

Width of the drawing = Actual width × Scale factor

                                   = 36 × \frac{1}{9}

                                   = 4 inches

Therefore, dimensions of the drawing made by Brian are (5 inches × 4 inches)

6 0
3 years ago
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