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3 years ago

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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What number when multiplied by itself is 11 greater than the preceding number when it is multiplied by itself

ycow [4]

Answer:

5*5=25

6*6=36

36-25=11

so the answer is 6.

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2 years ago

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(9/ 4)/ 18 = 9/ (4 /18) A.True B.False

kotegsom [21]

False

(9/ 4)/ 18
= 9/4 * 1/18
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3 years ago

Micheal took his brother to the movies. Micheal paid regular price, but it cost $2 less for his brother at the child price. It c

iren [92.7K]

It cost $5 for his brother's ticket.

Step-by-step explanation:

Let,

Micheal's ticket price= x

His brother ticket price = y

According to given statement;

x+y=12 Eqn 1

y = x-2 Eqn 2

Putting value of y from Eqn 2 in Eqn 1

$x+(x-2)=12\\x+x-2=12\\2x=12+2\\2x=14\\$

Dividing both sides by 2;

$\frac{2x}{2}=\frac{14}{2}\\x=7$

Putting x=7 in Eqn 2

$y=7-2\\y=5$

It cost $5 for his brother's ticket.

Keywords: linear equation, substitution method

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3 years ago

Yolanda says 10 to the 5th power is the same as 50 because 10×5=50. what was yoland's mistake?

topjm [15]

When it's 5th to the power you do the number by itself how many times the power is so the correct way would be

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3 years ago

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Please help!!!!!

sergeinik [125]

-8.1

Step-by-step explanation:

$\frac{ - 4}{9} x + 2.4 = 6$

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Divide by -4

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2 years ago

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