Answer:
<h3>55 secs</h3>
Step-by-step explanation:
Given the elevation h (in feet) of the balloon modeled by the function h(x)=−6x+330, we can calculate the time it takes the balloon to reach the ground. The hot air balloon hits the ground at h(x) = 0.
Substitute h(x) = 0 into the modeled expression and find x as shown;
h(x)=−6x+330
0 = −6x+330
6x = 330
Divide both sides by 6
6x/6 = 330/6
x = 55 seconds
Hence the hot air balloon hits the ground after 55 seconds
Answer:
30 gallons
Step-by-step explanation:
Let c represent the capacity of the container in gallons.
2/5c +8 = 2/3c . . . . adding 8 gallons to 2/5 full gives 2/3 full
8 = (2/3-2/5)c = 4/15c . . . . subtract 2/5c
8(15/4) = c = 30 . . . . . . . . . multiply by 15/4
The container can hold 30 gallons.
Answer:
a
Step-by-step explanation:
4/5 seconds is 0.8 seconds as a fraction.
Answer:
B. 13
Step-by-step explanation: