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4 years ago

12

Trey has $19.76 in his wallet. he buys a pack of gum for $1.79 and a bottle of water for $2.34. how much money does trey have le

ft?

1 answer:

larisa [96]4 years ago

8 0

19.76 - 1.79 = 17.97 - 2.34 = $15.63

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What is the value of x, if twice x plus 3 cubed equals 40?

tatuchka [14]

I will give two solutions, one where everything is cubed and one where just the 3 is cubed, because I don't know what you meant.

Just the 3 is cubed solution(Which I think is correct because it has a nicer answer):

Answer:

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Step-by-step explanation:

We have that $2x+3^3=40$ .

We can subtract $3^3=27$ from both sides of the equation to get $2x=13$ .

We can then divide by $2$ to get $x=13/2$ .

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Answer:

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Step-by-step explanation:

We have that $(2x+3)^3=40$ .

We can take the cube root of both sides to get $2x+3=\sqrt[3]{40}$ .

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So, we want to solve $2x+3=2\sqrt[3]{5}$ .

We can subtract $3$ from both sides to get $2x=2\sqrt[3]{5}-3$ .

We can then divide both sides by $2$ to get $x=\sqrt[3]{5}-3/2$ .

So, $\boxed{x=\sqrt[3]{5}-3/2}$ and we're done!

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