pleasehelpimdumbbb pleasehelpimdumbbb

03-06-2020
Mathematics

contestada

A triangle has 3 angles. One of the angles is 40 degrees. Another angle is 60 degrees. The last one has a label of 2n - 10. What would "n" have to be?
A. 25
B. 35
C. 45
D. 55

Respuesta :

03-06-2020

Answer:

C

Step-by-step explanation:

The sum of the angles on a triangle must always equal 180 degrees. That means...

40 + 60 + (2n - 10) = 180

100 - 10 + 2n = 180

90 + 2n = 180

90 - 90 + 2n = 180 - 90

2n = 90

n = 45

I hope this helps!

Answer Link

Otras preguntas

The glycogen molecule has two types of linkages between the glucose molecules of which it is comprised. Of these, the _____ linkage is broken by the glycogen ph

How many muffins he can make if each muffin used 1/3 cup of sugar

Define Community health ?

Which line is parallel to the line that passes through the points (2,-5) and (-4,1)?

A building society is advertising the following savings accounts. Nominal interest rate Account Marble Saver Oak Saver 4.75% p.a. paid yearly b) Explain why AER

Which sentence distinguishes between exponential and linear growth? Exponential growth occurs at a steady rate; linear growth increases rapidly over time. Expon

Which sentence correctly shows how the apostrophe is used to form a contraction?(1 point) Responses Fred noted it's a poor time to plant spring flowers until af

Which axis is the triangle being reflected over?

is a 50-point Financial Forecasting, External Funding Required, and Sources and Uses exercise. You will need to forecast an income statement for Tortuga based o

Pls help due soon Josh rowlett interview