The answer to the first problem is -6. I say this because the product of
3 * -2 =-6
-6 is the answer for the first 1
Ps: Im not sure if you want me to complete the other problmes
If the amount of time taken to go said distance is x and the amount of time taken to go back said distance is y, then the amount of miles total is 7x+3y due to that for every hour, she adds 7 miles when going there and 3 miles for walking back. In addition, since the total amount of time is 4 hours, x+y=4 as the total time spent as well as 7x=3y due to that they're the same distance.
x+y=4
7x=3y
Dividing the second equation by 7, we get x=3y/7. Plugging that into the first equation, we get 3y/7+y=4=10y/7 (since y=7y/7). Multiplying both sides by 7 and then dividing both by 10, we get 28/10=2.8=y in hours. Since 0.1 hours is 60/10=6 minutes, and 0.8/0.1=8, 6*8=48 minutes=0.8 hours, meaning that she should plan to spend 2 hours and 48 minutes walking back
21 feet buddy there are 3 feet for every yard 7*3=21
Answer:
22 degrees
Step-by-step explanation:
The temperature rose for 10 hours between 4 am and 2 pm. At 3 degrees per hour, the rise is ...
(3 degrees/hour)(10 hours) = 30 degrees
Starting from -8 degrees, the temperature rose to ...
-8 +30 = 22 . . . degrees
Everyone got a calculator.....each weighed 16 oz.......gave them to 20 students.....20 * 16 = 320 total oz
16 oz = 1 lb
320/16 = 20 lbs <==
or, if u just think about it...u gave 16 oz to each student.....16 oz = 1 lb...so u gave 1 lb to each student....20 students = 20 lbs