what is the lcm of 28xy2 and 42x²y​

Answer:

31.25 s

Step-by-step explanation:

We'll begin by calculating the speed of Finn.

NOTE: Finn is swimming at a constant speed. Hence we shall use any of the data given in the question above to determine the speed of Finn. This is illustrated below:

Time = 7.25 s

Distance = 11.6 m

Speed =?

Speed = distance / time

Speed = 11.6 / 7.25

Speed = 1.6 m/s

Therefore, the speed of Finn is 1.6 m/s

Finally, we shall determine the time taken for Finn to swim 50 m. This can be obtained as follow:

Speed = 1.6 m/s

Distance = 50 m

Time =?

Speed = distance / time

1.6 = 50 / time

Cross multiply

1.6 × time = 50

Divide both side by 1.6

Time = 50 / 1.6

Time = 31.25 s

Therefore, the time taken for Finn to swim 50 m is 31.25 s.

Answer:

31.25 Seconds

Step-by-step explanation:

Answer:

If there will be 24 lines on all pages, there will be 175 pages in the book

Step-by-step explanation:

First we have to find out how much lines does the book have in total, so we multiply the number of pages by the number of lines on the page. So we get.....

120 x 35 = 4200

Now in order to find out how much pages will the book have when a page will have 14 lines we divide the number of lines by 24 and we get......

4200 / 24 = 175

Answer:

right 1 unit and down 5 units

Step-by-step explanation:

Answer:

18.75

Step-by-step explanation:

Answer:

you are correct!!

Step-by-step explanation:

6x=180

x=30

Answer:

Step-by-step explanation:

look 4x+2x=180

6x=180

x=30

Have a wonderful day

ask me for further questions

Answer:

After making them the improper fractions the numerator is multiplied with the numerator and denominator is multiplied with the denominator .

Step-by-step explanation:

Suppose we have fractions

3 4/5   and 2 15/24

So we multiply the whole number with the denominator beside them and add to the numerator to make them an improper fraction.

These will become

19/5   *   63/24

= 19*63/ 5*24

= 1197/120

=  9 117/120

After making them the improper fractions the numerator is multiplied with the numerator and denominator is multiplied with the denominator .

The answer 1197/120 is divided ( 1197 is divided by 120) to get the mixed number back  with a whole number and a fraction.

Inequality Answer: 1 + y ≥ 3

I hope this helps, and Happy Holidays! :)

Answer:

9

Step-by-step explanation:

If she uses 3eggs for one sponge cake, then, the number of cake she can make is 29/3 which is equals to 9.

The number of eggs remaining are 2

Answer:

x = 60

Step-by-step explanation:

The two angles shown here are known as corresponding angles. This means they both equal the same amount of degrees. Knowing this, we can set up an equation:

2x + 15 = 135

2x = 120

x = 60

Therefore, x = 60

You can check your answer by substituting the answer for x:

2(60) + 15 = 135

120 + 15 = 135

135 = 135

Answer:

1. 7.07

2. 19.10

3.7.42

4. 67.27

5. 13.42

6. 21.8

7. 27.22

8.26.91

Step-by-step explanation: nope but hope it helps :)

Answer:

Nika can make 15 cups of milk.

Step-by-step explanation:

To find how many cups she can make, we divide 3 3/4 by 1/4. First, we convert 3 3/4 to an improper fraction.

3 ¾ / ¼           Equation

15/4 /  ¼         Convert to improper

15/4 * 4/1        Reverse sign & second fraction

= 60/4

= 15

Also, 15 * 1/4 = 3  ¾, so its correct!

Answer:

a-4

b-3

c-1

Step-by-step explanation:

Answer:

option d is the correct answer

Step-by-step explanation:

use formula for finding sum of all interior angles of regular polygon i.e. (n-2)×180 where n is no of sides of regular polygon then divide it by no. of sides of regular polygon to find measure of one angle of regular polygon and then subtract it from 180° to find the answer

Answer:

D) {11,-4,-29}

Step-by-step explanation:

rewrite the equation as y= -5x+1 and plug in -2,1 and 6 to get y

-5*-2+1=11

-5*1+1=-4

-5*6+1=-29

Answer:

3.5 kg, 0.5 kg

Step-by-step explanation:

The starting weight is represented by the y intercept, and the slope of the line is 0.5, so that's the average weight gain per month. Hope this helps!

Answer:

coordinated answer: (7,7)

Answer:

I believe X= 15

Step-by-step explanation:

Answer:

0.048

explanation:

We are to simplify the expression given

The simplified form of the expression is option B. 67/10x + 9

Given:

= 3(7/5x + 4) - 2(3/2 - 5/4x)

= [tex] \frac{21}{5} x + 12 - \frac{6}{2} - \frac{10}{4} x[/tex]

= 21/5x + 12 - 6/2 + 10/4x

collect like terms

= 21/5x + 10/4x + 12 - 6/2

= (84x+50x)/20 + (24-6)/2

= 134/20x + 18/2

= 67/10x + 9

Read more:

https://brainly.com/question/1280754

Answer: 67/10x + 9 would be your answer.

Answer:

whatever is higher than 1.5 is higher than r

Step-by-step explanation:

-1.2 ≤ -0.8r

-1.2/0.8 ≤ -0.8r/0.8

-1.5 ≤ -r

-1.5/-1 ≤ -r/-1

1.5 ≥ r

1.5 is equal to or bigger than r

Answer: -0.8r is bigger

Step-by-step explanation:

Answer:

[tex]H=210.25\ \text{units}[/tex]

Step-by-step explanation:

Given that,

[tex]H = -16t^2 + 84t + 100[/tex] ...(1)

We need to find the maximum height

For maximum height, put dH/dt = 0

[tex]\dfrac{d(-16t^2 + 84t + 100)}{dt}=0\\\\-32t+84=0\\\\t=\dfrac{84}{32}\\\\t=2.625\ s[/tex]

Put t = 2.625 in equation (1)

[tex]H = -16(2.625)^2 + 84(2.625) + 100\\\\=210.25\ \text{units}[/tex]

Hence, the maximum height [tex]=210.25\ \text{units}[/tex]

Answer:

your answer should look like this.

Step-by-step explanation:

The horizontal line goes through y-intercept -1/2

Answer:

-5/2

Step-by-step explanation:

n +1/2 = -3/4

Cross Multiply

4n + 4 = -6

Then subtract 4 and put it on the other side

4n = -10

Now divide by 4 on both sides

n = -10/4

And finally, simplify

-10/4 = -5/2

Answer:

[tex]n = \frac{-5}{2}[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Step-by-step explanation:

Step 1: Define

[tex]\frac{n + 1}{2} = -\frac{3}{4}[/tex]

Step 2: Solve for n

Answer:

Gay.

Step-by-step explanation:

I means gay, some people just refer to that but most commonly known as 'gay'.

Answer:B

Step-by-step explanation:

The answer is B

everyone should know this

Answer:

7.2 x 10 CUBED

Step-by-step explanation:

Step 1

To find a, take the number and move a decimal place to the right one position.

Original Number: 7,200

New Number: 7.200

Step 2

Now, to find b, count how many places to the right of the decimal.

New Number: 7 . 2 0 0

Decimal Count:   1 2 3

There are 3 places to the right of the decimal place.

Step 3

Building upon what we know above, we can now reconstruct the number into scientific notation.

Remember, the notation is: a x 10b

a = 7.2 (Please notice any zeroes on the end have been removed)

b = 3

Now the whole thing:

7.2 x 103

Step 4

Check your work:

103 = 1,000 x 7.2 = 7,200

Answer:

the answer is [tex]7.2\times \:10^3[/tex]

Step-by-step explanation:

hope this helps :)

Answer:

9

Step-by-step explanation:

Answer:

Step-by-step explanation:

the answer is 9.575

Answer: Add 315 gallons of 70% antifreeze to 90 gallons of 25% antifreeze to make a 60% mixture.

You need to end up a mixture that is 60% antifreeze.

You have 90 gallons of 25% antifreeze, which means it has .25*90 = 22.5 gallons of pure antifreeze mixed with a solvent (probably water).

.

You will add 'x' gallons of 70% antifreeze to make the 60% mixture.

So, at the conclusion, you will have (90+x) gallons  60% 'pure' antifreeze. That can be shown with the equation:

.

.25*90 + .7*x = .6*(90+x)

.

Multiply by 100 to eliminate fractions.

.

25*90 + 70x = 60(90 +x)

.

2250 + 70x = 5400 + 60x

.

10x = 5400 -2250

.

10x = 3150

.

x = 315 gallons of 70% antifreeze.

.

How much will you end up having on hand?

90 + 315 = 405 gallons

.

If it is 60% antifreeze, how much 'pure' antifreeze will be in the mixture?

.6*405 = 243

.

In the original 90 gallons, you have 22.5 gallons of pure antifreeze.

In the additional 315 gallons, you have .7*315 = 220.5 gallons.

22.5+220.5 = 243 gallons

Step-by-step explanation:

Hope this helps,

Have a great day

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The relationship between each proportion of antifreeze can be used to form an equation.

The number of 90% antifreeze that must be added is 490 gallons.

The question is incomplete. So, I will use the following details to answer the question

[tex]Av ai la bl e = 70[/tex] gallons of 10% antifreeze

[tex]x \to[/tex] gallons of 90% antifreeze

[tex]Total = x + 70[/tex] --- after mixing the solution; to get a 80% solution

The equation is then represented as:

[tex]70 \times 10\% + x \times 90\% = (x + 70) \times 80\%[/tex]

[tex]7 + 0.9x = 0.8x + 56[/tex]

Collect like terms

[tex]0.9x - 0.8x = 56 - 7[/tex]

[tex]0.1x = 49[/tex]

Divide by 0.1

[tex]x = \frac{49}{0.1}[/tex]

[tex]x = 490[/tex]

Hence, 490 gallons of 90% antifreeze must be added.

Read more about equations at:

https://brainly.com/question/2264804