Yohanna swam y yards yesterday. sheylin swam 5 yards less than half the amount of yards as yohanna. write an expression that represents the number of yards sheylin swam yesterday.

Step-by-step explanation:

Given : Yohanna swam y yards yesterday.

If Sheylin swam 5 yards less than half the amount of yards as Yohanna.

Then, the distance swam by Sheylin=

Therefore, The expression that represents the number of yards Sheylin swam yesterday:

ans789

step-by-step explanation:

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.