The cost table shows the average cost

Mathematics

1 answer:

snow_tiger [21]3 years ago

7 0

Answer:

Step-by-step explanation:

it matches the table

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Aaliyah bought four composition notebooks and three packs of pencils from the school bookstore and paid $10.93.Laura bought seve

sveticcg [70]

4c + 3p = 10.93....multiply by 7
7c + 2p = 13.31....multiply by -4
--------------------
28c + 21p = 76.51 (result of multiplying by 7)
-28c - 8p = - 53.24 (result of multiplying by -4)
------------------add
13p = 23.27
p = 23.27/13
p = 1.79 <== cost of 1 pencil pack

1.79/10 = 0.179 rounds to 0.18 <== unit price per pencil

7 0

3 years ago

Which of the following explains how triangle AEB could be proven similar to triangle DEC using the AA similarity postulate?

Andrei [34K]

Triangle AEB could be proven similar to triangle DEC using the AA similarity postulate as ∠AEB ≅ ∠DEC because vertical angles are congruent; rotate ΔCED 180° around point E, then translate point D to point A to confirm ∠EAB ≅ ∠EDC.

<h3>What is AA similarity postulate?</h3>

The AA Similarity Postulate shows that two triangles are similar. If two angles in one triangle are congruent to two angles in another triangle, then the two triangles are similar.

In tis case, Triangle AEB could be proven similar to triangle DEC using the AA similarity postulate as ∠AEB ≅ ∠DEC because vertical angles are congruent; rotate ΔCED 180° around point E, then translate point D to point A to confirm ∠EAB ≅ ∠EDC.

Learn more about triangle on:

brainly.com/question/17335144

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