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tresset_1 [31]
3 years ago
9

Joe, Sarah, and Bob are all riding their bikes around the neighborhood. Joe can complete a lap around the neighborhood in 15 sec

onds. Sarah can complete a lap around the neighborhood in 20 seconds. Bob can complete a lap around the neighborhood in 30 seconds. At what time will all 3 complete a lap around the neighborhood at the same time? Show your work.
Mathematics
1 answer:
Xelga [282]3 years ago
7 0

Answer:

The 3 will complete a lap around the neighborhood in 60 seconds ( 1 minute)

Step-by-step explanation:

The time each of the three can take is 15 , 20, 30 seconds

Now, we want to calculate the time at which all 3 will complete a lap around the neighborhood at the same time

To calculate this, we simply look for the lowest common multiple of the three numbers

The lowest common multiple of 15, 20 and 30 seconds is 60 seconds ( 1 minute)

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F(n)=4n-3 find the 15th term of the sequence defined by the explicit rule
pickupchik [31]

Answer:

57

Step-by-step explanation:

f(15)=4(15)-3

f(15)=60-3

f(15)=57

Hope that helps, tell me if you need more help

7 0
3 years ago
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iDentify the equation of the circle that has its center at (-27, 120) and passes through the origin A. (x−27)2+(y+120)2=123 B. (
melomori [17]
The equation of a circle is given in the form (x-a)^2+(y-b)^2=r^2, where

(a, b) is the centre of the circle
r = radius

We have the centre of the circle (-27, 120)
We can work out the radius by modelling the radius as the hypotenuse of a triangle as shown in the diagram below

r^2=27^2+120^2
r^2 = 15129

The equation of the circle is

[x-(-27)]^2+[y-120]^2=15129
[x+27]^2+[y-120]^2=15129

Correct answer: option number 4

7 0
3 years ago
Will someone please answer this ASAP??
nirvana33 [79]
SA = 2bA (base area) + LA (lateral area)

bA = r^2*pi = 13^2pi = 169pi cm^2

LA = 2r*pi*h = 2*13*pi*88,4 = 2298,4pi cm^2

SA = (2*169pi)+2298,4 pi = 338pi+2298,4pi = 2636,4pi
3 0
3 years ago
A system of equations is shown below:
Crank
Thank you for posting your question here at brainly. Feel free to ask more questions.  

<span>The x-coordinate of the solution to this system of equations shown below is x = 2 .</span><span>   
    </span><span>
Hope my answer would be a great help for you.</span>
5 0
3 years ago
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I was reading a book of 560 pages. On Sunday, I was able to finish 1/4pages of the book. How many pages do I read on Sunday?
kolbaska11 [484]

Answer:

140

Step-by-step explanation:

560. 1

____. ÷. ______

1. 4

Cross out the numbers that are divisible

560/4 = 140

5 0
2 years ago
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