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denis-greek [22]
3 years ago
14

Victoria is shopping for thank-you notes at Sweet Greetings. She is trying to decide between the three different packages of not

es shown below.Package 110 notes for $4.00Package 212 notes for $6.00Package 38 notes for $6.00If Victoria is looking for the best deal, which package of thank-you notes should she buy?
Mathematics
1 answer:
saul85 [17]3 years ago
5 0
One way to find the best deal of thank you notes is to find the cost of each card for each example (unit rate).  To do this divide the cost by the number of cards you are getting.

$4/10 = $0.40 per card

$6/12 = $0.50 per card

$6/8 = $0.75 per card

The best deal is package one at $0.40 per card.
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crimeas [40]

Answer:

11x -8y = -9

Step-by-step explanation:

8x-4y=-4

-3x+4y=5

Subtract the second equation from the first

8x-4y=-4

-(-3x+4y=5)

-----------------------------

Distribute the minus sign

  8x-4y=-4

+(3x-4y=-5)

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11x -8y = -9

5 0
3 years ago
If x = 8 and n = 3, Evaluate the following expression: 3x - 3n + 2
Firlakuza [10]

Answer:

7

Step-by-step explanation:

3x8-3x3+2

24-3x3+2

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3 years ago
9.01 prove that the two circles are similar
il63 [147K]

Answer:

see the procedure

Step-by-step explanation:

we know that

Figures can be proven similar if one, or more, similarity transformations (reflections, translations, rotations, dilations) can be found that map one figure onto another.  

In this problem to prove circle C and circle A are similar, a translation and a scale factor (from a dilation) will be found to map one circle onto another.

we have that

Circle C is centered at (0,-1) and has a radius of 2 units

Circle A is centered at (3,4) and has a radius of 5 units

step 1

Move the center of the circle C onto the center of the circle A

the transformation has the following rule

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so

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center circle C is now equal to center circle A  

The circles are now concentric (they have the same center)

step 2

A dilation is needed to increase the size of circle C to coincide with circle A

scale factor=radius circle A/radius circle C-----> 5/2=2.5

radius circle C will be=2*scale factor-----> 2*2.5=5 units

radius circle C is now equal to radius circle A  

therefore

A translation, followed by a dilation will map one circle onto the other, thus proving that the circles are similar

4 0
3 years ago
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vesna_86 [32]
Number 21 would be 6 39/40
8 0
3 years ago
What the answer and how do I solve it?
tatiyna

Answer:

5xy^2z

Step-by-step explanation:

(-15/-3) x (x^6/x^5) x (y^5/y^3) x z = 5xy^2z

4 0
3 years ago
Read 2 more answers
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