Answer:
y≥ 23
Step-by-step explanation:
y/3 - 7 ≥ 2/3
Add 7 to each side
y/3 - 7+7 ≥ 2/3+7
y/3 ≥ 2/3+21/3
y/3 ≥ 23/3
Multiply each side by 3
y/3 *3 ≥ 23/3*3
y≥ 23
2 ones are equal to 0 tens
Answer:
34 minutes
Step-by-step explanation:
Given
Required
Number of minutes left to spend (x)
Since there's only 1 minute left to spend on every other call;
Time left = x * 1
Time left = x
The required can further be calculated using:
This gives:
Subtract 6 from both sides
<em>Hence, there are 34 minutes left to spend</em>
Answer:
Step-by-step explanation:
Here, the given expression is:
Simplifying the given expression, we get:
Hence, on simplification :
Answer:
255 m
Step-by-step explanation:
From the given question, the surface of the water body is the reference point. And this point is assumed to be 0, so that any distance above it is positive, and any distance below is negative. This is synonymous to the number line system.
Thus,
For the aircraft, its height = +200 m
For the submarine, its depth = -55 m
So that the difference between the submarine and aircraft can be determined as;
200 - (-55)
= 200 + 55
= 255 m
The distance between the submarine and aircraft is 255 m.