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3 years ago

10

Yolanda is buying supplies for school. She buys n packages of pencils at 1.40 per package and m pads of paper at 1.20 each. What

does the term in the expression 1.4n + 1.2m represent? What does the entire expression represent?

1 answer:

Elanso [62]3 years ago

4 0

The entire expression represents how many packages of pencils and pads of paper bought.

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For which function is the ordered pair (5,10) not a solution ?

PilotLPTM [1.2K]

Answer:

D)

Step-by-step explanation:

Because

a) 10 = 2(5) = 10

b) 10 = 5 + 5 = 10

c) 10 = 15 -5 = 10

d) 10 = 5 - 5 = 0 the result is not equivalent

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3 years ago

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The sum of the areas of two circles is 80 pi

katovenus [111]

The area of a circle is A = πr^2. We let A1 And A2 the areas of the circles and r1 and r2 the radius of each, respectivley.

A1 + A2 = 80π
Substitute the formula for the area,
π(r1)^2 + π (r2)^2 = 80π

From the statement, we know that r2=2(r1).

<span>π(r1)^2 + π (2 x r1)^2 = 80π
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5 x (r1)^2 = 80
Thus,

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15 points and crown <br> solve by factoring (x+6)(2x-5)=0<br> I am confused

Reika [66]

Remember, in order for this equation to be true either one of the polynomials has to equal 0
So:

-> x+6 = 0

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(08.01) The graph shows two lines, Q and S. A coordinate plane is shown with two lines graphed. Line Q has a slope of one half a

ki77a [65]

Answer:

There are no solutions for the pair of equations.

The lines are parallel to each other

Step-by-step explanation:

Line Q has a slope of 1/2 and crosses the y axis at 3.

This mean at x=0, y=3

Using the equation of a straight line expression to find the slope

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For the Line S , slope is 1/2 and the line crosses the y axis at -2 , which represents the c in the equation y=mx +c

The equation for S will be

$y=\frac{1}{2} x-2$

Using the graphing tool to plot the two equations for line Q and line S we notice that the lines are parallel .For solutions, they have to intersect.

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Dmitry [639]

Answer:

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Step-by-step explanation:

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