A cyclist rode 15 miles south and 20 miles west. If she takes a diagonal route back to her starting point, how many mile will she have to travel?

25 miles

Step-by-step explanation:

you can use the Pythagorean Theorem and let the legs be 15 and 20, the diagonal (c) is the hypotenuse

15² + 20² = c²

225 + 400 = c²

625 = c²

c = = 25

13

step-by-step explanation:

169-1=168

168-3=165

165-5=160

160-7=153

153-9=144

144-11=133

133-13=120

120-15=105

105-17=88

88-19=69

69-21=48

48-23=25

25-25=0

since it took 13times to completely subtract it hence its square root is 13

(3x-8) or (3x+8)

step-by-step explanation: