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joja [24]
3 years ago
10

I need assistance!!!!

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

Answer:

Step-by-step explanation:

DE = (1/2) * AC           {Midpoint theorem}

9x - 20 =\frac{1}{2}(5x + 12)

2(9x - 20) = 5x  + 12

2*9x - 2*20 = 5x + 12

18x - 40 = 5x + 12

18x -5x - 40 = 12

   13x  - 40  = 12

           13x  = 12+40

           13x  = 52

             x  = 52/13

            x = 4

AC = 5x + 12

     = 5*4 + 12

     = 20 +12

AC = 32

erastovalidia [21]3 years ago
3 0

Answer:

Step-by-step explanation:

Because midpoints were used to make similar triangles we can say

AC=2(DE)

5x+12=2(9x-20)

5x+12=18x-40

-13x+12=-40

-13x=-52

x=4

AC=5x+12

AC=5(4)+12

AC=20+12

AC=32

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Answer, will mark brainliest ^^ (worth 61 points)
Sergio [31]

Answer:

1) ven diagram #1

2)160

3) 420

4)16

Step-by-step explanation:

1) lets make a ratio table:

(look at image below, sorry for the horrible writing)

the original ratios are 18 and 17, and 18+17=35   35 is the number of students who play either or both sports. 30 is the number who play either sport:

so 35-30=5

5 students play both sports:

18-5=13(baseball)

17-5=12(basketball)

2) add up all the students who do band or sports and subtract from the total number of students

so

89/464+215/464= 304/464 students play in band or orchestra or both, to find the number of students who dont:

464-304=160

3) 630/1000+420/1000=1050/1000

1050/1000-210/1000=840/1000

840/1000-420/100=420/1000

420 ppl use brand p

4) 15+9=24

40-24=16

16 ppl

hope this helps!

3 0
3 years ago
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What is the answer???
frez [133]
B will b the answer that's the only answer yuh can get is b
4 0
3 years ago
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what is the length of tw¯¯¯¯¯¯ ? segment t w with point u between t and w. segment t u is marked congruent to segment u w. segme
Gennadij [26K]
T________U________W
        16
TU=UW
16=16
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6 0
3 years ago
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A bakery sold a total of 400 cupcakes in a day, and 43% of them were vanilla flavored. how many of the cupcakes sold that day we
garik1379 [7]

The number of the cupcakes sold that day that were vanilla flavored is 172.

<h3>How do we calculate a number from a percentage?</h3>

The number of the cupcakes sold that day that were vanilla flavored can be calculated using the following formula:

Number of vanilla flavored cupcakes sold = Total number of cupcakes sold * Percentage that were vanilla flavored .............. (1)

Substituting the relevant values into equation (1), we have:

Number of vanilla flavored cupcakes sold = 400 * 43% = 172

Learn more about percentages here: brainly.com/question/14801224.

#SPJ1

7 0
2 years ago
Show your work!!!!!!!!!!!!!!!!!!!!!!!
elena-14-01-66 [18.8K]

Answer:

Here is my workk

Step-by-step explanation:

WORKKKKK

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