A man starts at point zero.He walks forward four paces to point 4. He returns to point zero and continues walking back four more
paces before he stops identify this point
1 answer:
Answer:
New point will be (-4) or (-4, 0).
Step-by-step explanation:
"A man starts at a point zero".
If we locate this point on a graph we call it origin (0, 0).
"He walks forward four paces to point 4".
Then he reaches the point (4, 0) which is 4 units apart from the origin.
"He returns to the point zero".
That means man comes back to the origin (0, 0) by covering 4 units back.
"He continues walking back for 4 more paces"
That means man doesn't stop at zero and continues walking for 4 paces in the same direction.
On the graph he moves towards the negative direction of the x-axis.
So on graph the new point will be (-4, 0).
In more simpler way he will be at (-4) point.
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<u>Answer: </u>
Expression x + 2my + z represents cost of order where x, y, z are cost of small , medium and large drinks (in dollars) respectively.
<u>Solution: </u>
Given that
Juan’s family ordered a small drink and m medium drinks.
Alex family ordered m medium drinks and a large drink.
Need to write an algebraic expression which shows total cost of both order in dollars.
Let’s assume cost of one small drink = x
And assume cost of one medium drink = y
And assume cost of one large drink = z
So now cost of order of Juan’s family is equal to cost of 1 small drink + cost of m medium drinks = 1 x + m
y
= x + my
And cost of order of Alex family is equal to cost of m medium drinks + cost of one large drink
= m x y + 1 x z
=my + z
So total cost of both order in dollars = x + my + my + z = x + 2my + z
Hence expression x + 2my + z represents cost of order where x , y , z are cost of small , medium and large drinks (in dollars) respectively.