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docker41 [41]
3 years ago
10

Help please help please

Mathematics
2 answers:
ANTONII [103]3 years ago
7 0
Answer is C. 22

if you subtract 15 by 10, you get 5. so you can also subtract 27 by 5 and get 22

anzhelika [568]3 years ago
3 0
∆ABC is similar to ∆DEF (SAS),

AB/DE = AC/DF
27/x = 15/10
15x = 270
x = 18

The length of DE is 18 units.
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What is the value of a in the equation 5a -10b = 45 when b = 3
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Salutations!

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value of b = 3

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Now, you can solve the equation --

5a-30=45

separate the variables aside, and the numbers aside.

5a=45 +30

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Hope I helped (:

Have a great day!
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