Answer:
48/73
Step-by-step explanation:
---------------------------------
Josie
---------------------------------
3 hours = 26.25
---------------------------------
Find wages for 1 hour :
---------------------------------
1 hour = 26.25 ÷ 3 = 8.75
---------------------------------
Find wages for 8 hours :
---------------------------------
8 hours = 8.75 x 8 = $70
---------------------------------
Find wages for a week :
---------------------------------
$70 x 7 = $350
---------------------------------
Salvador
---------------------------------
2 hours = $15
---------------------------------
Find 1 hour :
---------------------------------
1 hour = $15 ÷ 2 = $7.50
---------------------------------
Find 8 hours :
---------------------------------
8 hours = $7.50 x 8 = $60
---------------------------------
Find 1 week :
---------------------------------
1 week = $60 x 5 = $300
---------------------------------
Define x :
---------------------------------
Let x be the number of weeks needed
---------------------------------
Construct equation :
---------------------------------
350x = 300x + 1000
---------------------------------
Solve for x :
---------------------------------
350x = 300x + 1000
---------------------------------
Take away 300x from both sides :
---------------------------------
50x = 1000
---------------------------------
Divide by 50 :
---------------------------------
x = 20
------------------------------------------------------------------
Answer: It will take 20 weeks.
------------------------------------------------------------------
To understand the algebra, go through the following equations below:
- First the thing to note is that the top square is the square of the bottom square: Stage 1: 1 &
, stage 2 = 2 & 
, stage 3 = 3 & 
- Second image: Just add the two values above to get the total of tiles needed. For stage 5: 5 +
= 30, Stage 12: 12 + 
= 156
Part B
- First equation : y =
+ n
- second equation: y = n + (n*n)
<h3>Meaning of algebra</h3>
Algebra is defined as a branch of mathematics that deals with variables, symbols and finding of these unknown using arithmetic operation such as ( +, -, *, ÷ )
Algebra is the study and understanding of mathematical symbols and how to manipulate them in mathematical problems and formulae.
In conclusion, the above are the solution to the questions on the attached image.
Learn more about algebra: brainly.com/question/22399890
#SPJ1
Answer:
(x, y) = (-4, -15)
Step-by-step explanation:
Perhaps you want the solution to ...
y = 3/4x -12
y = -4x -31
Equating the two expressions for y gives ...
3/4x -12 = -4x -31
3/4x = -4x -19 . . . . . add 12
3x = -16x -76 . . . . . multiply by 4
19x = -76 . . . . . . . . . add 16x
x = -76/19 = -4 . . . . divide by 19
y = (3/4)(-4) -12 = -15 . . . . use the first equation to find y
The solution to this system of equations is ...
(x, y) = (-4, -15)
