Answer:
y = 160 - x
Step-by-step explanation:
Given :
Maximum text character = 160
x = number of typed characters
y = Number of characters left or unused characters
Unused characters = 160 at the start of a fresh message page, which reduced as characters are being typed.
Hence,
Unused characters = (maximum characters - number of typed characters)
y = 160 - x
Answer: Adrian will need to fix 25 bikes to reach a break even point.
<h3>Answer:</h3>
D. If x2 = 9, then x = 3.
<h3>Explanation:</h3>
The converse reverses the order of phrases in "if p then q" so it becomes "if q then p". Here, that makes the converse ...
... If x^2 = 9, then x = 3.
The converse is not true (x may be -3), so we're finished with the problem. The appropriate choice is the one indicated above.
Answer:
It would take 4 hours for both candles to be the same height
Step-by-step explanation:
Total time (t) for red candle to be same height (h) can be expressed as;
Final height after time t=Initial height-rate per hour
where;
Final height after time=h
Initial height=8 inches
Rate per hour=rate×time=(7/10)×t=0.7t
Substituting;
h=8-0.7t
Total time (t) for blue candle to be same height (h1) can be expressed as;
Final height after time t=Initial height-rate per hour
where;
Final height after time=h1
Initial height=6 inches
Rate per hour=rate×time=(1/5)×t=0.2t
Substituting;
h1=6-0.2t
Since h=h1
8-0.7t=6-0.2t
8-6=0.7t-0.2t
0.5t=2
t=2/0.5
t=4 hours
It would take 4 hours for both candles to be the same height
1/3(6x-9)=7-2x
2x-3=7-2x
2x+2x-3+3=7+3-2x+2x
4x=10
X=10/4