admin

2 months ago

Guest #3914

2 months ago

Slower on the second attempt because 1/12 =0.083

Repeating

While 1/10 = .1

Repeating

While 1/10 = .1

Question

Spining a spinner that has 5 equal section marked 1 through 5 and landing on an evean number

Solution 1

Judging on how the only even numbers between 1 and 5 are 2 and 4. You would use a calculator and do 2Ã·5 and it will come out as .40 meaning 40%! So there is a 40% chance of landing on a even number! Hope I helped!

Question

The area of a circle can be tripled by multiplying the radius by what factor?

Solution 1

A whole circle =Â to 360 so you have to think of the radius to a factor for multiplying

Solution 2

By 1.73.

Â Because the formula for the area of a circle isÂ Ã—rÂ².

So let us say the radius for circle A is 1. so area is equal to.Â Ã—2Â²

which is equal to 12.56

Now you need to triple the area, so if i am in the right path you would multiply area of circle A 3 times leaving you with 37.699

Now, we make use of the equation solving skills.

The way to find the radius is.

A= Ã—rÂ²

So

âˆš(AÃ·)

So puting and solving the equations the factor of multiplication gives us 1.73Â

Â

Â Because the formula for the area of a circle isÂ Ã—rÂ².

So let us say the radius for circle A is 1. so area is equal to.Â Ã—2Â²

which is equal to 12.56

Now you need to triple the area, so if i am in the right path you would multiply area of circle A 3 times leaving you with 37.699

Now, we make use of the equation solving skills.

The way to find the radius is.

A= Ã—rÂ²

So

âˆš(AÃ·)

So puting and solving the equations the factor of multiplication gives us 1.73Â

Â

Question

A rectangle has a length of (3.2a + 0.18b)centimeters.The width is half the length. Sasha writes the expression (12.8a + 0.72b) to represent the perimeter of the rectangle in centimeters. Is Sashaâ€™s reasoning correct? Explain.

Solution 1

The width is half the length, so is

Â width = (1/2)*length

Â width = (1/2)*(3.2a + 0.18b) cm

Â width = (1.6a +0.09b) cm

The perimeter of the rectangle is twice the sum of length and width.

Â perimeter = 2*(length + width)

Â perimeter = 2*((3.2a +0.18b) cm + (1.6a +0.09b) cm)

Â perimeter = 2*(4.8a +0.27b) cm)

**Â perimeter = (9.6a +0.54b) cm**

Sasha did not get this answer, so apparently ...

Â**her reasoning was not correct**.

Â width = (1/2)*length

Â width = (1/2)*(3.2a + 0.18b) cm

Â width = (1.6a +0.09b) cm

The perimeter of the rectangle is twice the sum of length and width.

Â perimeter = 2*(length + width)

Â perimeter = 2*((3.2a +0.18b) cm + (1.6a +0.09b) cm)

Â perimeter = 2*(4.8a +0.27b) cm)

Sasha did not get this answer, so apparently ...

Â

Question

A banquet has charges $750 to feed a large party. Each person must also pay $3.50 for a tip. If divided equally, how many people would need to participate for the cost to be $15 per person

Solution 1

Let the number of people be x.

Total tips = 3.5x

Total cost = 750

Each person = $15

15x = 750 + 3.5xÂ

15x - 3.5x = 750

11.5x = 750

x = 65.22

**Answer:Â 66 people should participate.**

Total tips = 3.5x

Total cost = 750

Each person = $15

15x = 750 + 3.5xÂ

15x - 3.5x = 750

11.5x = 750

x = 65.22

Question

Karen has 3 pieces of ribbon that are each 2 3/4 yd long. She also has a piece of lace that is 3 1/5 yd long. Karen needs to cut the lace into 4 pieces that are all the same length to finish a sewing project. How long should each piece of lace be? A. 1 4/5 yd B. 1 1/4 yd C. 11/12 yd D. 4/5 yd

Solution 1

The first sentence is filler information that can be ignored, as the question involves lace, not ribbon.

Convert the mixed fraction into an improper fraction.

3 * 5 = 15

15 + 1 = 16

The fraction is nowÂ .

Divide the fraction by 4, as you want to get 4 equally long pieces.

You getÂ , which can be simplified toÂ .Â

The answer is**D.**

Convert the mixed fraction into an improper fraction.

3 * 5 = 15

15 + 1 = 16

The fraction is nowÂ .

Divide the fraction by 4, as you want to get 4 equally long pieces.

You getÂ , which can be simplified toÂ .Â

The answer is

Solution 2

Because the lace is 3.2 ydlong, so 3.2Ã·4=4/5

Question

If you are measuring km what do you need to change it to so you can measure it on the ruler

Solution 1

You need to change it to meters that is 1*1000, so you need to have the measured distance divided by 1000 after you measure a kilometer by ruler.

Question

8, 15, 14, 9, 1, 6, 3 What number would come next in the sequence above, 4, 7, 10, or 12? Explain your answer.

Solution 1

**The next number in the sequence will be 12. **

__Explanation__

The given sequence is: Â 8, 15, 14, 9, 1, 6, 3

If we express these numbers in words, then we can see that the words are in alphabetical order, like....

Eight, Â Fifteen, Â Fourteen, Â Nine, Â One, Â Six, Â Three

There are two numbers 10 and 12 in the options which starts with letter 'T' , but Â alphabetically '__ Tw__elve' will be the next number after '

**So, the next number in the sequence will be 12. **

Question

Find the product to (x+2)(x+1) to fulfil my pleasure

Solution 1

Use foil, (first outside, inside, last) and simplify to get: x^2+3x+2

Question

Tyra is training for a bicycle race. Each week she rides a total distance greater than 10 kilometers and less than or equal to 30 kilometers. If the distance is always an even number and a multiple of 3, what are the possible distances Tyra rides in one week?

Solution 1

12 km,18 km,24 km,30 km only this are possible.

(i think)

(i think)

Question

there are 54 people at the party. 18 of them are wearing red, what percent of them are not wearing red

Solution 1

**There are 54 people at the party.**

**18 people are wearing red which means that 36 people are not wearing red**

**54 - 18 = 36**

The fraction represents the 36 people at the party that are wearing no red. We can find what percent of the people at the party are not wearing red by turning into a percent.

can be reduced to Â by dividing both the numerator and denominator by the greatest common factor of 36 and 54.

2 Ã· 3 = 0.667

0.667 Ã— 100 = 66.67%

Therefore, 66.67% of the people at the party are not wearing red

Solution 2

18 = number wearing red

54-18 = 36 not wearing red

36 out of 54 = 36/54

36/54 = 0.6666

0.6666 * 100 = 66.67%

Percent wearing red is 66.67%

54-18 = 36 not wearing red

36 out of 54 = 36/54

36/54 = 0.6666

0.6666 * 100 = 66.67%

Percent wearing red is 66.67%

Mathematics
2647929

History
842281

English
748681

Biology
586256

Social Studies
406852

Chemistry
368373

Business
348603

Physics
324927

Health
199835

Spanish
130075

Geography
112100

Computers and Technology
106146

Arts
77164

Advanced Placement (AP)
23675

World Languages
23213

French
22589

Engineering
19607

Law
17108

Medicine
13966

SAT
10987

German
3389

High School
3423409

Middle School
2092250

College
1518097