X - Linda's speed
(x+8 )- Colleen's speed
8x - Linda's distance for 8 h
8(x+8) = 8x+64 - Colleen's distance for 8 h
8x + 8x + 64 = 176 - distance between Colleen and Linda after 8 h
8x + 8x + 64 = 176
16x +64 = 176
16x = 176 - 64
16x = 112
x= 7 mph Linda's speed
x+8 = 7+8 = 15 mph Colleen's speed
Hello,
log (16)=2 in base 3x-5
==>16=2^(3x-5)
==>2^4=2^(3x-5)
==>4=3x-5
==>3x=9
==>x=3
Answer:
4
Step-by-step explanation:
2 + 2 = 4
If 21 is the final answer to the equation then x would be 9
700/10 = 70
A heart beats 70 times in a minuet.
70 * 2 = 140
It takes 2 minuets for a heart to beat 140 times.
