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3 years ago

9

Identify a common factor (other than 1) of terms in the expression-7x+21. Factor the expression to generate an equivalent expres

sion

1 answer:

pashok25 [27]3 years ago

5 0

Answer:

common factor = -7, equivalent expression -7(x -3)

Step-by-step explanation:

both terms have the 7 or -7 in common, once you factor it, you get -7(x-3)

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How many pieces of carpet can be cut if each piece is 2/5 meter long

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Maybe convert 2/5 into meters

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3 years ago

The owner of a sporting goods store in Phoenix, Arizona surveys her customers to determine the proportion of customers that play

BabaBlast [244]

Answer:

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4 years ago

The sum of a Rational Number and an irrational number is rational true or false?

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3 years ago

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Darryl’s credit card has a minimum monthly payment of 2.51% of the card’s balance. If Darryl currently owes $1,431.72, what is h

kupik [55]

Darryl’s credit card has a minimum monthly payment of 2.51% of the card’s balance.
Darryl currently owes $1,431.72. Let's solve his minimum payment.
=> 1,431.72 * 0.0251 = 35.94 dollars
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here you go....

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3 years ago

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Solve the following system by graphing. If there isn't a unique solution to the system, state the reason. y=-2x y=2x+4

natka813 [3]

Answer:

We have the system of equations:

y = -2*x

y = 2*x + 4.

To solve it by graphing, you need to graph both lines and see in which point the lines intersect each other.

You can see it in the image below. (blue is y = 2*x + 4, and green is y = -2*x)

We also can calculate the solution with math, let's do that:

y = -2*x

y = 2*x + 4.

We can replace the first equation in the second one, to get:

-2*x = 2*x + 4

Now let's solve this for x

-2*x -2*x = 4

-4*x = 4

x = 4/-4 = -1

Evaluating this in one of the equations we get:

y = -2*-1 = 2

Then the solution is the point (-1, 2), exactly what we can see in the graph.

3 0

3 years ago