When the balloon is on the ground, it is at point 0. It starts to go up at 5 f/m for a time of 4 minutes. So we will multiply 5 by 4 to get 20. At this point, the balloon is 20 feet off the ground. However, we now know that the balloon descends at 2 f/m at a time of 7 minutes. So we must multiply 2 by 7 to get 14. So we know it was at 20, and then it went down by 14.
20 - 14 = 6 feet
This means that the balloon is now 6 feet above the ground.
I hope I've helped! :)
7200 kg = 7.200.000 grams because 1 kg is 1000 grams
Answer:
y=.1x+40; Your total monthly bill is $48 for 80 text messages.
Step-by-step explanation:
y is your total bill
x represents each text message
40 is you cellphone bill cost
.1 is the cost per text message
(y=.1x+40 becomes your equation)
plug 80 to represent "x"
y=.1*80+40 ---> y=48
your total monthly bill is $48
Answer:
right triangles are 90 degrees sooooo
add 39 plus 27, that's 66
90 minus 66 issss <u>24</u>
