Suppose point D is in the interior of ∠ABC, m∠ABC=120 degrees, m∠ABD=3x+40, and m∠DBC=2x−10. What is m∠DBC

Mathematics

2 answers:

neonofarm [45]3 years ago

7 0

∠ABC is 130 degrees.

See the following image for steps:

WARRIOR [948]3 years ago

5 0

Answer: 30

Step-by-step explanation:

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aleksklad [387]

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8 0

3 years ago

Which algebraic expression represents “the difference of fifty-four and seven times a number”? 54 minus 7 n StartFraction 54 Ove

VMariaS [17]

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Step-by-step explanation:

When we talk about mathematical language, the difference between two numbers, quantities or terms is the substraction operation.

For example, the difference between a and b is:

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On the other hand, if we read a numer c times a number n, this means both numbers are multiplied.

For example:

c times n is: