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d1i1m1o1n [39]
3 years ago
14

Pleas yall help ill give 20 points

Mathematics
1 answer:
lesya [120]3 years ago
4 0

Answer:

b) x=-2

Step-by-step explanation:

2(x+2)-4x =8

2x+4-4x

-2x+4 = 8

    -4   -4

-2x = 4

(divide both sides by -2)

x=-2

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Step-by-step explanation:

you would change it to 5x-4(-3x+5)=-3, because you put the info for the first equation into the second equation.

5x-4(-3x+5)=-3

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The total surface area of a cube is 96cm2, find its volume.
Setler [38]

Answer:

\huge\boxed{V=64cm^3}

Step-by-step explanation:

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SA=6a^2

The formula of a volume of a cube:

V=a^3

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1. Adrian invests $10,000 in an account that increases by 8% each year. What is the balance in the account after 15 years?
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Answer:

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A small pizza at Little Italy pizzeria costs $9.25, and each topping is an additional $0.50. So the cost of ordering a pizza can
Vera_Pavlovna [14]

Answer:

Graph the equation is shown below.

Step-by-step explanation:

The linear equation representing the relation between cost of ordering a pizza and the number of additional toppings is:

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The graph of the linear equation is shown below.

Consider the point (2, 10.25).

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The point (2, 10.25) satisfies the equation.

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When <em>x</em> = 18 compute the value of <em>y</em> as follows:

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The point (18, 18.25) satisfies the equation.

The two points are also plotted on the graph.

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