A drummer is stocking up on drumsticks and brushes. The drumsticks that he buys are $10.50 a set and the brushes are $24 a set. He buys twice as many sets of sticks as brushes. If he spent $90 on drumsticks and brushes, how many sets of sticks and brushes did he buy?

4 packs of sticks

2 packs of brushes

Step-by-step explanation:

I estimated to start and then proved it by

10.50 x 4 equaling 42

24 x 2 equaling 48

Add them to get 90.

Mark me as brainliest if this helps!

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