63miles/1hr = 1071miles/ h hours
Cross multiply
1071= 63h, divide both side by 63
h = 17
Yes, the statement is correct. Since 2 x 3 = 6, we can divide 6 by 3 to get 2 or by 2 to get 3.
Answer:
I'm sorry I don't know the equation, but she walks 3 mph.
Step-by-step explanation:
We know that the answer is asking for speed, which needs both distance and time, so we also need both. Which is where the 9 mph is used. 9 mph means its a difference. b means biking mph, w means walking mph, sooo ----->>> b=w+9, and the difference in the 1st equation is 36, which means the first equation is 4 times larger than the b=w+9, so she walked 48 miles, as well as walked 12 miles in 4 hours. Divide then distances by 4, and you get 12 miles and 3 miles in one hour. Or 12 mph & 3 mph, which fits into 12=3+9. So she walks 3 miles per hour.
18+18=36 because 1+1 equals 2(20) and 8+8 equals 16. 20+16=36
