Hallie has $24 to spend on pencils. If each pencil costs $2 and she had $10 left, how many pencils did she buy? Written as a equation

Amount of money spent on the pencils

= $24-$10

= $14

No. of pencils bought

= 24÷2 --> written as an equation

= 12

Equation: 24 - 2p = 10

Pencils she bought: 7 pencils

Explanation:

Let number of pencils be p

initial money - cost of pens = final money

24 - 2p = 10

Solve this to find pencils she bought:

24 - 2p = 10

-2p = 10 -24

-2p = -14

p = 7

So she bought 7 pencils in total.

proofs involving isosceles triangles often require special consideration because an isosceles triangle has several distinct properties that do not apply to normal triangles.(more about triangle types) therefore, when you are trying to prove that two triangles are congruent, and one or both triangles, are isosceles you have a few theorems that you can use to make your life easier.

step-by-step explanation:

an isosceles triangle has two congruent sides and two congruent angles. the congruent angles are called the base angles and the other angle is known as the vertex angle. ∠bac and ∠bca are the base angles of the triangle picture on the left. the vertex angle is ∠abc

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step-by-step explanation: