When using substitution to solve this system of equations what is the result of the first step?
x = 6y+3
x+2y=5

a) x+2(6x+3)=5
b) x+2(6y+3)=5
c) 6y+3+2y=5
d) 6x+3+2y=5
*to this is a review, i am allowed to gain as if this is to educate me!

Juliana says that she can use the patterns of equivalent ratios in the multiplication table below to write an infinite number of ratios that are equivalent to 6: 10. which statement explains whether juliana is correct? she is correct because she can multiply 6 and 10 by any number to form an equivalent ratio. she is correct because 6: 10 can be written as 1: 2 and there are an infinite number of ratios for 1: 2. she is not correct because the multiplication table does not include multiples of 10. she is not correct because 6: 10 is equivalent to 3: 5 and there are only 9 ratios in the multiplication table that are equivalent to 3: 5.

The reflexive property of congruence lets you say that ∠pqr ≅

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?