C three times a number less seven is greater than or equal to twenty.solve for x
Answer:
x=11
AB=45
BC=73
Step-by-step explanation:
AB+BC=AC, so...
4x+1+7x-4=118
Combine like terms
11x-3=118
Solve for x
11x=118+3
11x=121
x=11
Now put x in each equation
AB=4x+1=4(11)+1=44+1=45
BC=7x-4+7(11)-4=77-4=73
AC=45+73=118 (which was given!)
The actual length is 6*40=240 cm, 8*40=320 cm, 10*40=400 cm. And the angle measures of the actual sign will not change. The transformation can be turning over using the hypotenuse as axle. Or rotate the triangular sign 180° using the center of the triangle as the center of rotation. The turning over method will accomplish.
