3 years ago

Which of the following values are rational numbers?

Mathematics

2 answers:

Ierofanga [76]3 years ago

7 0

I think it’s E,D, and B

ivann1987 [24]3 years ago

4 0

B, D, E i could be wrong

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Assume the following: 1) the scattergraph intersects the Y axis at $200; 2) the estimated line on the scattergraph increases by

Schach [20]

Answer:

The total cost is:$400

Step-by-step explanation:

Given

$x \to units$

$y \to cost$

$(x,y) = (0,200)$ --- when the graph intersects the y-axis

$m = 10$ -- the rate

Required

y when x = 20

First, we determine the equation of the plot using:

$y = mx + c$

Substitute 10 for m

$y = 10x + c$

Next, solve for c.

Substitute $(x,y) = (0,200)$

$200 = 10*0+c$

$200 = 0+c$

$c = 200$

So:

$y = 10x + c$

$y =10x + 200$

When x = 20

$y =10*20 + 200$

$y =200 + 200$

$y = 400$

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diamong [38]

4 2/5= 22/5 ⇒ 22/5 + 21/5 = 43/5

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bagirrra123 [75]

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The sum of two numbers is 28 and their difference is 4. What are the numbers?

Maru [420]

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