It will take 60 seconds to move one end to the other.
The distance that an object travels in relation to the amount of time it takes to do so can be used to define speed. In other terms, it is a measurement of an object's motion's speed without direction Velocities are what we get when speed and direction are combined.
Given the speed of a person = 21 feet in 7 seconds
speed in per second = 21/7 = 3 feet per second
distance of sidewalk = 180 feet
speed = distance/time
time = distance/speed
time = 180/3
time = 60 seconds
Hence it will take 60 seconds to cover the distance.
Learn more about speed;
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Wellington's Splash of Color charges $70 per hour for painting, but no
inspection fee. Which of the following are true? Select all that apply. *
If it takes 7 hours to paint Hannah's room, Interior Design will be cheaper.
If it takes 3 hours to paint the room, both companies will charge the same amount.
If it takes 10 hours to paint Hannah's room, Splash of Color will cost at least $200
more than Interior Design.
Splash of Color will always be cheaper.
the first one is correct
and last one is correct
Step-by-step explanation:
Answer:
Step-by-step explanation:
sfdgxfhcgjvhkbjlnjbvhcgfxdkfcgvhbjnkbvhcgufxdyfkcugvhbjhgbhkgbkhbhbkbnkj hb
6
9
15
30
Answer:
The answer is (d) 30
Step-by-step explanation:
The LCD (lowest common denominator) of 5/6 is 5 * 6 = 30.
And 2/5 s 2 * 5 = 10
10 = 2×5
15 = 3×5
LCM = 2×3×5 = 30
I hope this helps! Please mark me as brainliest and have a nice day!!
~abelxoconda
Answer:
30.
Step-by-step explanation:
The LCD of 5 and 6 is 5 * 6 = 30.
Its not 15 because 6 will not divide into 15,
1. Two consecutive integers means that the values are whole numbers and they are located right after the other (eg. 2, 3).
Now, let us call the smaller value x. The consecutive value will be one greater than x, thus the larger value may be written as x + 1.
2. We know that the product of the two values is 420. Given that the smaller value is x and the larger value is x + 1, we can write this as:
x(x + 1) = 420
3. Now we can expand to get:
x^(2) + x = 420
4. Now subtract 420 from both sides to get:
x^(2) + x - 420 = 0
Therefor, the constant of the quadratic expression is -420.