Factor each expession 63+81

Answers

Answer 1

Answer: Something wrong with this question. Check it again.
IF
63x+81
= 9(7x+9)

63+81x
= 9(7+9x)

Answer 2

Answer: 63 + 81 = 9(7 + 9)

Your final answer is 9(7 + 9).

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Susan, Lillian, John, and Polly participated in an Easter egg hunt. At the end of the hunt, 96 eggs were shared equally among them. How many Easter eggs did each of the receive?

Answers

My way of solving this problem is making variables. 4 = people because there was 4 people then you do 96 / people = 24

For a game, three people are chosen in the first round. Each of those three people chooses 3 people in the second round. How many are chosen the sixth round.

Answers

Answer:

Number of people chosen in the sixth round is 729

Step-by-step explanation:

Given : For a game - 3 people are chosen in first round then each of three chooses 3 people in the second round ans so on.

To find : How many are chosen the sixth round.

Solution : We know,

In first round 3 people choose ⇒no. of people =3

In second round 3 people individually choose 3 people ⇒no. of people = 9

since the number of people chosen with a constant amount forming a geometric series

Geometric series - A sequence of numbers where each term after the first is found by multiplying the previous one by a fixed also called as common ratio.

General form: $a,ar,ar^2,ar^3......$

and n-th term of geometric series is $a_n=ar^(n-1)$

where a - first term , r- common ratio and n-number of term

For the sixth round - a=3, r=3 , n=6

$a_n=ar^(n-1)$

$a_6=3*3^(6-1)$

$a_6=3*3^(5)$

$a_6=3^6=729$

Therefore, number of people chosen in the sixth round is 729

In the sixth round 729 people are chosen.

What number is 33 1/3% of the positive difference between 25% of 60 and 75% of 16?

Answers

$33(1)/(3)\% \cdot (25\% \cdot 60 - 75\% \cdot 16 )=\n \n=(100)/(3)\cdot (1)/(100)\cdot ((25)/(100)\cdot 60-(75)/(100)\cdot 16) =\n \n=(1)/(3)\cdot ((1)/(4)\cdot 60-(3)/(4)\cdot 16) =(1)/(3)\cdot (15-12) =(1)/(3)\cdot 3 =1$

4 sweets cost 28 p altogether how much do 7 sweets cost?

Answers

4 sweets cost 28p altogether

28÷4=7p for each sweet

If each sweet costs 7p, then 7 sweets would be multiplied by 7

7×7p=49p

7 sweets cost 49p

divide 28 by 4 then u get 7. then u multiply 7 sweets by 7 and you get 49.
so the answer is one 1 sweet costs 7$ = 7 sweets cost 49$

Please can you give me some facts on percentages other than how to work them out???

Answers

Say your test is out of 100 and you 75 correct to calculate your percent you would go

75/100*100

/ = Divide
* = Times

percent means parts per hundred.

3% means 3 parts out of 100 parts

obviously decimals and percentages are similar (percentages are just 100 times larger)

to convert a fraction to a decimal, one may do long division or convert the faction to having a denominator of 100

ex) 3/5 100 is 20 times larger than five, so multiply the numerator and denominator by 20 and get 60/100 which is 60 parts per 100 or 60%

this can also be done with 1/6 and other fractions, but it is harder because you have to know how many times larger 100 is which can sometimes defeat the purpose. For 1/6 it is 16.6666666 times larger than 6, so 16.66666666/100 or 16.6666666%

If one has a repeating decimal such as .546 repeating and they wish to convert it to a fraction, all they have to do is divide it by the same number of nines as there are repeating digits. 546/999 is .546 repeating and it reduces to 183/333

if the repeating decimal starts with non-repeating decimals, break it apart into a non-repeating decimal added to a repeating decimal.

.2345345345345345... = .2+ (.345 repeating)/10

= 1/5 + 345/9990
simplify with common denominator
=781/3330

I'm sorry that I couldn't be more helpful, but I thought some random percent knowledge would be better than nothing.

The sum of two numbers is 91. If twice the smaller number is subtracted from the larger number, the result is 4. Find the two numbers

Answers

Answer:

the 2 numbers are 29 and 62

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