1. Consider the following scenario... Robert earned $10, which was 4 less than twice what Eric earned. How much money
did Eric earn?
In a complete sentence, state the correct equation for the scenario.
Identify and define your variable. Then, using the correct vocabulary, and math
process, explain how to accurately solve the problem. Lastly, In a complete sentence
define your answer.

$7

Step-by-step explanation:

Robert = $10 or 2x-4

Eric = x (variable), 2x-4=10 (twice minus 4)

Now just manage the equation

2x-4=10 (substitute by adding 4 to both sides)

2x = 4 + 10

2x =14 (substitute by diving by 2 getting rid of x2)

x = 14/2

x = 7

Eric earnt 7 dollars.

fourth month

step-by-step explanation:

it is the one with the most keychains.

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47