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2 years ago

Samual walk foward 19 steps. He represents this movement with a positive 19. How would he represent the opposite of this number?

Mathematics

2 answers:

weqwewe [10]2 years ago

7 0

-19
because 19 is the opposite of -19 as you might have learnt in opposite number

lozanna [386]2 years ago

6 0

Answer:

Negative 19

Step-by-step explanation:

If he walks forward 19 steps, then, he lands on positive 19. If the number is positive 19, then it's opposite would be negative 19.

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3 years ago

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2 years ago

What operation should be performed first in the expression 18-2 2+5x(16- 66 didved 3)

Kay [80]

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Give me a comment and a thank :))))

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3 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=x%20%2B%20y%20%3D%209%20y-x%3D1" id="TexFormula1" title="x + y = 9 y-x=1" alt="x + y = 9 y-x=1

Lapatulllka [165]

Answer:

x = $\frac{4}{5}$ , y = $\frac{1}{5}$

Step-by-step explanation:

Express as 2 equations, that is

x + y = 1 → (1)

- x + 9y = 1 → (2)

Add the 2 equations term by term to eliminate x, that is

10y = 2 ( divide both sides by 10 )

y = $\frac{2}{10}$ = $\frac{1}{5}$

Substitute this value into (1) and solve for x

x + $\frac{1}{5}$ = 1 ( subtract $\frac{1}{5}$ from both sides )

y = $\frac{5}{5}$ - $\frac{1}{5}$ = $\frac{4}{5}$

5 0

2 years ago