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2 years ago

8

three bells ring at the intervals of 10 minutes and 20 minutes if they all ring together at 10 clock when will they ring togethe

r next

1 answer:

mario62 [17]2 years ago

6 0

Answer:The LCM of 10, 15, and 20 is 60. After 60 minutes, they ring together again.

Step-by-step explanation:

You might be interested in

A bus is traveling at 50 mph. If the rate of speed increases 3 mph each hour, how long will it be before the bus is traveling at

arsen [322]

Answer:

It will take 10 hours.

Step-by-step explanation:

By using the formula of motion,

v = u + at

Here, v = Final speed of an object

u = initial speed

a = Acceleration by which the speed is increasing

t = Duration or time

Now substitute the values given in the question,

80 = 50 + 3t

3t = 30

t = 10 hours

Therefore, after 10 hours speed of the bus will be 80 mph.

4 0

3 years ago

What is the approximate distance between points A and B?

Aleks04 [339]

Answer:

$\displaystyle d \approx 7.62$

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

<u>Algebra II</u>

Distance Formula: $\displaystyle d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Find points from graph.</em>

Point A(1, 4)

Point B(-2, -3)

<u>Step 2: Find distance </u><em><u>d</u></em>

Simply plug in the 2 coordinates into the distance formula to find distance<em> d</em>

Substitute in points [DF]: $\displaystyle d = \sqrt{(-2-1)^2+(-3-4)^2}$
(Parenthesis) Subtract: $\displaystyle d = \sqrt{(-3)^2+(-7)^2}$
[√Radical] Exponents: $\displaystyle d = \sqrt{9+49}$
[√Radical] Add: $\displaystyle d = \sqrt{58}$
[√Radical] Evaluate: $d = 7.61577$
Round: $\displaystyle d \approx 7.62$

3 0

2 years ago

Keith has 39 books in his library he brought several books at a yard sale over the weekend he now has 84 in his library how many

garri49 [273]

Subtract original amount from new amount:

84 - 39 = 45

He bought 45 books.

3 0

3 years ago

If f(x) = e^[3ln(x^2)], then f'(x) = ?

kherson [118]

You might need to give out the choices, if there are any. thanks for asking.

8 0

3 years ago

Read 2 more answers

guillen floors advertise the same type of carpet at a cost of 10% less per square foot then Harlem Hardware determine the cost o

aev [14]

This question is incomplete. Harlem sells 500 square feet at $750
cost per square foot = 500/750 = $1.50
10% of $1.50 is 0.15
cost per square foot - 10% discount = $1.50 - $0.15 = $1.35
Therefore, Guillens cost for 700 square foot is $1.35 * 700 = $945

5 0

3 years ago