Answer:
30feet/second
Step-by-step explanation:
The rate in feet per seconds of the diver will be the speed of the diver.
Speed is the rate of change in distance of a body.
Speed = Distance/Time
Given distance or height of drop = 450feet
Time = 15seconds
Rate of change in distance = 450/15
Rate of change in distance = 30feet/second
Answer:
306.
Step-by-step explanation:
Firstly, we are aware 100% of 680 is obviously 680,
Next, we know half of a 100% is 50% therefore half of 680 is 340.
Then, we know 45% is 5% less than 50%
To find 5% of a number mentally, divide it by 10 as 100÷5=20
680÷20=34
Lastly 50% subtracted by 5%: 340-34=306.
Now we know, 45% of 680 is 306.
<em>Hope this helps.</em>
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Answer: there is a proplem in here
oi
Step-by-step explanation:
Answer:
11x + 12
Step-by-step explanation:
( 4x + 12 ) + 7x
Remove parentheses.
= 4x + 12 + 7x
Group like terms.
= 4x + 7x + 12
Add similar elements: 4x + 7x = 11x
= 11x + 12
