x + y = 3.36 --> the boys are splitting $3.36
x = 3y - .12 --> one boy received $.12 less than 3 times as much as the other
--> substitute the second equation for the x in the first equation
(3y - .12) + y = 3.36 --> combine like terms
4y - .12 = 3.36 --> add .12 to both sides of the equation
4y = 3.48 --> divide both sides by 4
y = .87
the other boy gets $0.87
substitute into x = 3y - 12
x = 3(.87) - .12
x = 2.61 - .12
x = 2.49
the first boy gets $2.49
V should equal -128 :) Hope this helps you
Answer:
66
Step-by-step explanation:
Remember a negative x negative = positive
- 4 - √2i
nothing to solve this is the simplified form
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Answer:
2.25km
Step-by-step explanation:
Calculate the total distance:
<u>9km/</u> 0.80 x 100% = 11.25km
The walker has travelled 9km, so
11.25km - 9km = 2.25km left