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Setler [38]
3 years ago
8

Could someone explain how to do this, I have no idea how...

Mathematics
1 answer:
alexira [117]3 years ago
7 0

Answer:

2a²

Step-by-step explanation:

Pair 'like' terms with 'like' terms, ie numbers go with numbers, and 'a's go with 'a's.

Lets deal with the top of the fraction first:

4ax3a³

Rearrange it so you have numbers beside numbers and 'a's beside 'a's:

(4x3)x(axa³)

12x(a⁴) <em>(because nᵃxnᵇ=nᵃ⁺ᵇ)</em>

12a⁴

Now, instead of (4ax3a³)/6a², we have 12a⁴/6a²

First divide the numbers: 12/6 =2

Now divide the 'a' parts: a⁴/a²=a² <em>(because nᵃ/nᵇ=nᵃ⁻ᵇ)</em>

Now we have 2a²

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7.
liraira [26]

Answer:

A geometric series has a positive common ratio r. The series has a sum to infinity of 9 and the

sum of the first two terms is 5. Find the first four terms of the series.

Step-by-step explanation:

A geometric series has a positive common ratio r. The series has a sum to infinity of 9 and the

sum of the first two terms is 5. Find the first four terms of the series.

8 0
3 years ago
15 more than the quotient of a number x and 12.
kkurt [141]

Answer:

(x/12)+15

Step-by-step explanation:

7 0
2 years ago
Can someone help. Write a word problem about equal groups and act it out to solve
Alona [7]

Answer:

HOPE THAT MAY HELP YOU :)

Step-by-step explanation:

Equal groups are illustrations of using the same variable.

A word problem that uses equal group is:  

Christopher traveled a distance of 5 miles yesterday; he traveled a distance of 4 miles earlier today. Calculate the total distance traveled  

The only condition for equal groups is that:  

The units or variable must be the same  

For instance:

Add 5 miles and 4 miles ----- This represents distance

Remove 2 liters from 7 liters --- This represents volume

Add 5 hours and quarter of an hour -- This represents time

And so on.

5 0
2 years ago
Need help 6th grade math
ELEN [110]

Answer:

Where's the question?

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Please help explanation if possible
Eva8 [605]

Answer:

612 adults

361 students

Step-by-step explanation:

To solve this question, set two equations:

Let x be number of adults and y be number of students.

As there are in total 937 people, the equation would be the sum of both adults and children:

x+y=937

x=937-y  ...... ( 1 )

As the total sale amount is $1109, the equation would be to add up the ticket fee:

2x+0.75y=1,109  ...... ( 2 )

Put ( 1 ) into ( 2 ):

2(937-y)+0.75y=1,109

1874-2y+0.75y=1,109

-1.25y=-765

y=763/1.25

y=612

Put y into ( 1 ):

x=973-612

x=361

Therefore there are 612 adults and 361 students.

5 0
3 years ago
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