2x+y=4 2·6+(−8)=?4
12−8=?4
4=4
What do you substitute for x and y in the first equation?

Substitute 6 for x and −8 for y in the first equation.

Perform the multiplication first.
When the left side of the equation is simplified, a true statement results.

x+3y=−20
6+3·(−8)=?−20

6−24=?−20
−18≠−20
What do you substitute for x and y in the second equation?

Substitute 6 for x and −8 for y in the second equation.

Perform the multiplication first.
When the left side of the equation is simplified, a false statement results.

inequality:

620-37.4p ≥ 450

the minimum amount of packages needed to be removed from the elevator is 5.

step-by-step explanation:

i believe it is b and c. (side note, i got the same computer from k-12 lol i’m in 8th grade and this is my first year, will it get

step-by-step explanation:

place r′ so that qr′ is parallel to the tangent.

now we get that ∠r′py=∠pr′q, where y is on the tangent, on the opposite side of p from x.

also, because of the symmetry, ∠r′py=∠qpx.

finally, note that no matter where we place r, as long as it's on the correct arc, we have ∠prq=∠pr′q.

stringing all these equalities together, we end up with ∠prq=∠qpx.

this picture will show how its going to look like.

hope this by jack monhen