Y-9 + y/2 = 180
Add nine to each side
y+y/2=189
Multiply each side by two
2y+y=378
Add the y's together
3y=378
Divide it all by three
y=126

so, Angle B is 126 degrees

I hope that helps!

5 0

3 years ago

Sally works in a cell phone store. She is paid a weekly salary of $80 plus $5.25 for

Viktor [21]

Answer:

First, let's define some variables.

x = # of cell phones sold.

y = total weekly income.

y = $5.25x + $80

a is the correct answer choice.

Step-by-step explanation:

7 0

3 years ago

a science quiz has eight multiple choice questions with five choices for each. Find the total number of ways to answer the quest

almond37 [142]

Answer:

390625

Step-by-step explanation:

The questions are all independent -- the answer on one question does not limit the number of possible answers on another question.

The quiz has 5 choices for each question, so there are

$5\times5\times5\times5\times5\times5\times5\times5$ ways to answer the quiz questions.

Notice that this could be written $5^8$ . You could say that the number of ways to answer the questions is

$number \, of \, choices^{number \, of \, questions}$

Use a calculator to find $5^8$

8 0

3 years ago