3 years ago

What is the constant of proportionality for the relationship shown in this table?

Mathematics

1 answer:

kodGreya [7K]3 years ago

6 0

Answer:

Step-by-step explanation:

It is 2 because of the counting by 2 and if you did not notice this , as you count by 2 the cost increases by 1

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The US exports 200 billion pounds of coal. How many tons does the US export?

Ira Lisetskai [31]

200 billion is 200,000,000,000 lbs
1 ton is 2,000 lbs.
So 200,000,000,000/2,000 = 100,000,000 tons or 100 million tons.

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3 years ago

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Complete the following: (2x +3y)^2 = (2x)^2+2(2x)(3y) +(____)^2

FrozenT [24]

Answer:

Complete function will be $(2x+3y)^2=(2x)^2+(3y)^2+2\times (2x)\times (3y)$

Step-by-step explanation:

We have given equation $(2x+3y)^2=(2x)^2+2\times (2x)\times (3y)+..........^2$

We have to find the function in place of blank space and complete the function

We know the algebraic equation $(a+b)^2=a^2+b^2+2ab$

So $(2x+3y)^2=(2x)^2+(3y)^2+2\times (2x)\times (3y)$

So in place of blank pace there will be $(3y)^2$

And complete function will be $(2x+3y)^2=(2x)^2+(3y)^2+2\times (2x)\times (3y)$

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3 years ago

Apples with mass 90 grams or less cost 32p each. Apples with mass more than 90 grams cost 39p each.

Sonja [21]

Answer:

So the answer is £67.08p

Step-by-step explanation:

156 X 0.32 + 4992 - so £49.92

Then, (200-156) X0.39 = £17.16

£17.16 + £49.92 = £67.08!! - hope this helps

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3 years ago

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A wheel barrow can carry up to 300 pounds of weight. A bag of soil wieghs 20 pounds. Write and solve an inequality to respresent

Alik [6]

Let x= the number of bags of soil

20x(less than or equal to sign) 300

divide both sides by 20 and you get x is less than or equal to 15

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3 years ago

Movie tickets for 2 adults and 3 children cost $44.50. Tickets for the same movie cost $23.50 for 1 adult and 2 children. How mu

schepotkina [342]

I think it is 45.75. I am sorry if it is wrong.

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3 years ago

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