In a car park the ratio of white cars to black cars is 2:7. The ratio of white cars to red cars is 3:11. Altogether there are 343 white, black and red cars. How many black cars are in the car park? Could anyone please teach me the method?​

What is the missing reason in step 5? linear pair postulategivendefinition of complementary anglescongruent complements theorem

In triangles abc and wxy, a=w and b=x which of the following must be true to prove abc=wxy by the aas theorem? a. ab=bc b. bc=xy c. ab=wx d.

The bottom of ignacio's desktop is 74.5cm from the floor. ignacios sits in his adjustable chair, and the tops of his legs are 49.3cm from the floor. each clockwise rotation of the knob on the chair raises ignacio's legs by 4.8cm. write an inequality to determine the number of clockwise rotations, r, ignacio could make with the knob without his legs touching the desk.