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boyakko [2]
3 years ago
7

Which ratio forms a proportion with 18/27? a. 1/3b. 2/5c. 2/3d. 7/9

Mathematics
1 answer:
Varvara68 [4.7K]3 years ago
6 0
The answer to this question is b. 2/3.
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There are 30 female performers in a dance recital. The ratio of men to women is 4:5. How many men are in the dance recital?
KATRIN_1 [288]
24 you take 30 and multiply it by 4 and then divide it by 5
5 0
3 years ago
Given the sequence 8, 16, 32, 64, ..., which expression would give the thirteenth term?
mrs_skeptik [129]
8, 16, 32, 64,…
 ×2  ×2  ×2

a_{n} = a_{1} * r^{n - 1}
a_{n} = 8 * 2^{13 - 1}
a_{n} = 8 * 2^{12}
a_{n} = 8 * 4096
a_{n} = 32768

           First Term: 8
      Second Term: 16
          Third Term: 32
        Fourth Term: 64
           Fifth Term: 128
          Sixth Term: 256
     Seventh Term: 512
       Eighth Term: 1024
         Ninth Term: 2048
        Tenth Term: 4096
   Eleventh Term: 8192
     Twelfth Term: 16384
Thirteenth Term: 32768

The\ expression\ that\ would\ give\ the\ thirteenth\ term\ of\ the\ problem\ would\ be\ the\ equation\ of\ the\ geometric\ sequence,\ which\ is\ equal\ to\ a_{n} = a_{1} * r^{n - 1}.

5 0
4 years ago
Read 2 more answers
. Simplify the following expression by combining like terms:<br> 3a + 6ab + 9ab + 3(a + ab)
gladu [14]

Answer:

6a+18ab

I think is correct

3 0
3 years ago
Read 2 more answers
14. Carla needs 1,600 beads to make
e-lub [12.9K]

Answer:I don’t know

I thought you won’t grieve me he answer straight up

Step-by-step explanation:

3 0
4 years ago
Please show work for both problems
kirill [66]

Answer:

3)  x = 15; 95 and 85      4)  x = 12; 98 for both angles

Step-by-step explanation:

2x + 65 + 3x + 40 = 180       Set the equations equal to 180

5x + 105 = 180                      Combine like terms

     - 105  - 105                      Subtract 105 from both sides

5x = 75                                  Divide both sides by 5

x = 15

Plug 15 into both equations

2(15) + 65 = 95

3(15) + 40 = 85

4)  5x + 38 = 9x - 10             Set the equations equal to each other

  - 5x          - 5x                    Subtract 5x from both sides

 38 = 4x - 10

+ 10       + 10                         Add 10 to both sides

48 = 4x                                  Divide both sides by 4

12 = x

Plug 12 into both equations

5(12) + 38 = 98

9(12) - 10 = 98

6 0
3 years ago
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