Q18 Jan writes down
one multiple of 9
and two different factors of 40
Jan adds together her three numbers.
Her answer is greater than 20 but less than 30
Find three numbers that Jan could have written down

took the test it's 94

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.

what? that isnt a question

step-by-step explanation: