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3 years ago

How do I solve for c and d

Mathematics

1 answer:

tankabanditka [31]3 years ago

6 0

For c using proportionality of corresponding sides you can writing

(3c+4) 9
--------- = -------
20 15

(3c+4) 3
---------- = ------ cross multiple
20 5

5(3c+4) = 20*3 divide both sides by 5

3c+4=4*3

3c+4=12

3c = 8

c = 8/3

for d you can writing

(2d-3) 9
--------- = ------
12 15

(2d-3) 3
--------- = ------- cross multiple
12 5

5(2d-3) = 12*3

10d -15 = 36

10d = 51

d = 51/10

d = 5,1

hope helped

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