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diamong [38]
3 years ago
15

6a squared - 15a - 8a + 20

Mathematics
2 answers:
Novosadov [1.4K]3 years ago
5 0
First we factor out 3a and -4. 3a(2a-5)-4(2a-5) =Now we take out (2a-5) our what’s left in brackets.(2a-5)(3a-4)
Sav [38]3 years ago
4 0
Heya!

Here is your answer:

6a²-15a-8a+20


= 3a(2a-5) -4(2a-5)

= (3a-4)(2a-5)

:)
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HELP ME PLEASEEEEE
AVprozaik [17]

Answer:  (x,y) = (-1, 1)

This means that x = -1 and y = 1

========================================================

Explanation:

The first equation says that y is the same as 2x+3

That allows us to substitute y for 2x+3 in the second equation like so:

2x+5y = 3

2x+5( y ) = 3

2x + 5(2x+3) = 3 .... y replaced with 2x+3

2x+10x+15 = 3

12x+15 = 3

12x = 3-15

12x = -12

x = -12/12

x = -1

Then we'll substitute this into the first equation to find y

y = 2x+3

y = 2(-1) + 3 .... x replaced with -1

y = -2+3

y = 1

Together x = -1 and y = 1 pair up to form the ordered pair solution (x,y) = (-1,1)

If you were to graph y = 2x+3 and 2x+5y=3 on the same xy grid, then you should see that the two lines intersect at the location (-1,1). This is a visual way to determine the solution quickly through use of a graphing calculator.

3 0
2 years ago
Please help me worth a bunch of points 26 points
Romashka [77]
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3 0
3 years ago
Read 2 more answers
0.9d-2.1f<br> Helpp!!❗‼️
IceJOKER [234]

Step-by-step explanation:

0.9(17) -2.7(3) =

15.3-8.1

=7.2

8 0
3 years ago
At Dubai metro station, in a week 320 trains arrived. Out of these 5% arrived early and 15% arrived late. How many arrived on ti
dybincka [34]

<u><em>The </em></u><u><em>number of trains</em></u><u><em> that arrived Dubai metro station on time is; 272 trains. </em></u>

<u><em /></u>

  • We are told that 320 trains arrived the Dubai metro station in a week.

  • Now, we are told that 5% got there early and 15% got there late.

This means, the percentage that got there on time is;

100% - % of trains that got there late.

  • Therefore, percentage of trains that got there on time is;

100% - 15% = 85%

  • Since 85% of the trains got there on time, then number of trains that got there on time is;

85% × 320 = 272

  • Therefore, we can conclude that 272 trains arrived on time.

Read more at; brainly.in/question/33336249

4 0
2 years ago
Simplify the expression (18x^2 / 3x^6) .
borishaifa [10]
The answer is 6/x^4.
3 0
3 years ago
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