Answer:
13.5 minutes
Step-by-step explanation:

Cross multiply
3 × 576 = 128x
3 × 576 = 1,728
1,728 = 128x
1,728 ÷ 128 = x
13.5 = x
Answer:
see below
Step-by-step explanation:
A graphing calculator can help you do this.
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The function crosses the y-axis where x=0.
g(0) = -5^0 +5 = -1 +5
g(0) = 4
The function crosses the x-axis where g(x) = 0
0 = -5^x +5
5^x = 5 = 5^1
x = 1
g(1) = 0
The points of interest are (0, 4) and (1, 0).
Answer:
t = 5
Step-by-step explanation:
20t + 5 + 15t = 180
35t + 5 = 180
35t = 175
t = 5
Hopefully this helps!
Brainliest please?
Answer:
C
Step-by-step explanation:
If you multiply the top equation by 7, you will get -7x.
Then, if you add -7x to 7x, it will eliminate the x value