consider the following situation: Mr. Richards wants to buy disposable masks for his family. Elure masks cost $1.50 and white masks cost $2.50. He has $45 to spend and wants to buy a total of 20 masks. 12. Define your variables and write an equation to represent the number of masks Richards is buying. 13. Using the same variables write an equation to represent the cost of the masks Richards is buying. 14. Choose either substitution or elimination and solve the system of equations you have created to determin many of each color Richards can buy. Show all of your steps.​

∠1≅∠2 by the alternate exterior angles theorem.

step-by-step explanation:

given, a ∥ b and ∠1 ≅ ∠3 .we have to prove that e ∥ f

we know that ∠1≅∠3 and that a || b because they are given. we see that by the alternate exterior angles theorem. therefore, ∠2≅∠3 by the transitive property. so, we can conclude that e || f by the converse alternate exterior angles theorem.

we have to fill the missing statement.

transitivity property states that if a = b and b = c, then a = c.

now, given ∠1≅∠3 and by transitivity property ∠2≅∠3 .

hence, to apply transitivity property one angle must be common which is not in result after applying this property which is ∠1.

the only options in which ∠1 is present are ∠1 and ∠2, ∠1 and ∠4

∠1 and ∠4 is not possible ∵ after applying transitivity we didn't get ∠4.

hence, the missing statement is ∠1≅∠2.

so, ∠1≅∠2 by the alternate exterior angles theorem.

idk

step-by-step explanation:

what steps are you having us

step-by-step explanation:

the answer to this in exact form is 4/35 but in decimal form its 0.1142857

hope this if needed hmu