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Phoenix [80]
3 years ago
5

Three babies A, B and C cry out at every interval of

Mathematics
2 answers:
aleksklad [387]3 years ago
8 0

Answer:

LCM of 20, 30, and 40

LCM = 120

they would cry together for the first time in 120 minutes.

ValentinkaMS [17]3 years ago
8 0

Answer:

the answer is below :)

Step-by-step explanation:

for this we have to use lcm of 20 30 and 40

2|20,30,40

2|10,15,20

2|5,15,10

5|1,3,2

2|1,3,1

3|,1,1

120÷60

after 2 hours

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The number 4 is the smallest positive integer that has exactly three factors: 1, 2, and 4. If k is the next-highest integer that
saul85 [17]

To solve this problem, we must do a method of trial and error to find for the next highest integer with exactly three factors. We know that the value of k must be greater than 4, therefore by using trial and error to find for the correct answer:

 

Factors of 5:1, 5

Factors of 6:1, 2, 3, 6

Factors of 7:1, 7

Factors of 8:1, 2, 4, 8

Factors of 9:1, 3, 9

 

Therefore we stop at 9 since this is already our answer. It has exactly three factors.

The sum of the factors is:

sum of factors = 1 + 3 + 9

<span>sum of factors = 13</span>

3 0
3 years ago
Question 1 (1 point)
Naily [24]

Answer:

P ( -1, -3)

Step-by-step explanation:

Given ratio is AP : PB = 3 : 2 = m : n  and points A(5,6) B(-5,-9)

We will calculate coordinates of the point P which divides line segment AB  in the following way:

xp = (n · xa + m · xb) / (m+n) = (2 · 5 + 3 · (-5)) / (3+2) = (10-15) / 5 = -5/5 = -1

xp = -1

yp = (n · ya + m · yb) / (m+n) = (2 · 6 + 3 · (-9)) / (3+2) = (12-27) / 5 = -15/5 = -3

yp = -3  

Point P( -1, -3)

8 0
3 years ago
$1800 is invested at 4% compounded annually. Find the future value of the investment in 5 years. Find the interest that the inve
harina [27]
5 Years is 1800x1.04^5 = 2189.98
Interest is 389.98
8 0
3 years ago
Read 2 more answers
Can somebody pls help me with this question I dont get it
alekssr [168]

Answer:

1. 195=6.50·c

2. 30

Step-by-step explanation:

195=6.5·c

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30=c

6 0
3 years ago
I need helpppp with 1-9
BigorU [14]
Hi!! What do you need help with? Solving the problems? Or understanding them? Also 1-9 is a bit blurry, so if you could retake it and repost it, I could solve for them. :). But if you don’t want to, don’t worry.
3 0
2 years ago
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