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astraxan [27]
3 years ago
12

Given the proportion a/b equals 8/15, which ratio completes the equivalent proportion a/8=?

Mathematics
1 answer:
notsponge [240]3 years ago
8 0
You can set proportions up 4 ways. See picture. Sorry you got the wrong answer.

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How do you solve |x-4| is less than or equal to 2?
Harlamova29_29 [7]

Answer:

with your brain

Step-by-step explanation:

duhh8/7

7 0
3 years ago
Calculate the averages for each category for the three-month period. category jan. feb. mar. average wages $2,100.00 $2,300.00 $
yan [13]
The averages for each category can be calculated by taking the sum of the values and dividing by the number of values .                             
                                 Jan                           Feb                          March
1) 
wages                    <span>$2,100.00                $2,300.00                $2,000.00
sum of the values = 2100 + 2300 + 2000 = 6400
number of values = 3
average = 6400/3 = $ 2133.33
</span><span>2)
donations                  $210.00                   $230.00                   $200.00
</span><span>average = (210 + 230 + 200)/3 
              = $ 213.33
3)
mortgage                   $590.50                   $590.50                  $590.50
</span><span>average = ( 590.50 + 590.50 + 590.50)/3 
              = $ 590.50
4)
electricity                   $101.25                     $89.75                     $80.00 
</span><span>average = (101.25 + 89.75 + 80.00)/3
              = 271/3
              = $ 90.33
5)
water                           $20.10                     $22.30                     $24.55
</span><span>average = (20.10 + 22.30 + 24.55)/3
              = 66.95/3
              = $ 22.32
6)
car loan                     $172.54                   $172.54                   $172.54
</span><span>average = (172.54 + 172.54 + 172.54)/3
              = $ 172.54
7)
food                           $200.25                   $220.70                   $205.50 
</span><span>average = (200.25 + 220.70 + 205.50)/3 
              = $ 208.82
8)
insurance                  $310.50                        $0.00                       $0.00
</span><span>average = ( 310.50 + 0.00 + 0.00)/3
              = $ 103.50
9)
clothes                          $0.00                        $0.00                     $75.00
average = (0.00 + 0.00 + 75.00)/3 
              = $ 25.00
</span><span>10)
car license fee              $0.00                    $120.90                       $0.00
average = (0.00 + 120.90 + 0.00)/3
              = $ 40.30
</span><span>11)
newspaper                    $0.00                        $0.00                     $45.00 
average = (0.00 + 0.00 + 45.00)/3
              = $ 15.00
</span><span>12)</span><span>movies                        $18.00                        $0.00                     $36.00 
average = (18 + 0.00 + 36.0)/3
              = $ 18.00
</span><span>13)
new car                     $100.00                    $100.00                   $100.00
average = (100 + 100 + 100)/3
              = $ 100.00
</span><span>14)
gasoline                      $80.00                      $70.00                     $75.00
average  = (80.00 + 70.00 + 75.00)
               = $ 75.00
</span><span>15)
car repairs                     $0.00                    $119.00                       $0.00
average = (0.00 + 119.0 + 0)/3
              = $ 39.67
</span><span>16)
miscellaneous             $64.50                      $59.25                     $72.50
average = (64.50 + 59.25 + 72.50)/3
              = 196.25/3
              = $ 65.42
</span><span>17)
savings                      $140.00                    $140.00                   $140.00
</span>average = ( 140 + 140 + 140)/3
              = $ 140.00
 
3 0
3 years ago
What is the value of x 5,2.5,7.5,10
Norma-Jean [14]
This question is referred to two similar triangles.

One triangle has sides x and x - 2.

The other triangle has the respective sides x + x + 5 and x - 2 + x + 1

Then you can state a proportionality relation between the sides>

[x + x + 5] / x = [x - 2 + x + 1] / [x - 2]

=> [2x + 5] / x = [2x - 1] / [x - 2]

=> (2x + 5)(x - 2) = (2x - 1)x

=> 2x^2 - 4x + 5x - 10 = 2x^2 - x

=> x - 10 = - x

=> 2x = 10

=> x = 10 / 2

=> x = 5

Answer: x = 5
3 0
3 years ago
Read 2 more answers
12 bars of chocolate costs $3.00 . What is the cost of each chocolate bar? ​
andre [41]

Answer:

$0.25

Step-by-step explanation:

Divide the cost by the amount.

\frac{3}{12}=0.25

Therefore, the cost of each chocolate bar is $0.25.

7 0
2 years ago
a tool set is on sale for $280. the original price of the tool set was $400. what percent of the original price is the sale pric
Marianna [84]

70%

Hope this helps! :)

______________

5 0
3 years ago
Read 2 more answers
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