10 Matteo works for the local council. The council has 1260 grit bins.
The council will increase the number of grit bins by 5%
Matteo thinks there will be more than 1300 grit bins after the increase.
NOT WRITE IN THIS AREA
Is Matteo correct?

Please show your working.

Thanks :)

idk

step-by-step explanation:

b and c

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.