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3 years ago

How to solve 2x+3y=12

1 answer:

5 0

You move 2x to the other side of the =, divide both side by 3 and make sure it’s in slope intercept form

2x+3y=12
-2x. -2x
——————-
3y= 12 -2x
—. — —-
3. 3. 3

y=4 - 2/3x

y= -2/3x + 4

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By substituting

jarptica [38.1K]

-0.581139 or 2.581139

4 0

3 years ago

At a museum, adult admission is $ 13.00 and children admission is $ 7.50. During one day, a total of 1900 adult and children a

bagirrra123 [75]

Answer:

1400 adult admissions.

Step-by-step explanation:

At a museum, adult admission is $13.00

Children admission is $7.50

During one day, a total of 1900 adult and children admissions were collected

And $21,950 in admission fees was collected.

Let adult admissions during that day be x,

And children admissions be y

The simultaneous equation formed is;

x + y = 1900 ... (i)

$13x + $7.50y = $21,950 ... (ii)

Multiplying (i) by 13 and (ii) by 1 we get;

13x + 13y = 24,700 ... (i)

13x + 7.50y = 21,950 ... (ii)

(i) - (ii) we get;

5.5y = 2750

y = 500

So there were 500 children admissions and 1900 - 500 = 1400 adult admissions.

8 0

3 years ago

PLEASE HELP ME WITH THIS I FINSIH MY QUARTER TONIGHT FOR SCHOOL AND I NEED TO GET THIS DONE!! Austin and his children went to th

astra-53 [7]

Answer:

$1a+2p=14\\a+p=9\\\\a=4\\p=5$

Step-by-step explanation:

$1a+2p=14\\a+p=9\\\\a+p=9\\a=9-p\\\\1(9-p)+2p=14\\9-p+2p=14\\9+p=14\\p=5\\\\a=9-(5)\\a=4$

Graphing:

Slope intercept form y=mx+b

a is y, p is x

y=-2x+14

y=-x+9

Intercept at (5,4)

8 0

3 years ago

Tony misplaced 7 stamps from his collection. He knows that each stamp of his worth $0.15 and that the total value of them is now

Lelechka [254]

44 Stamps. 5.55/0.15 = 37 stamps. 37 + 7 = 44. 44 Stamps.

3 0

3 years ago

Read 2 more answers

8. Which situation BEST represents an inverse variation ?

Mademuasel [1]

The correct answer is option D.

Explanation:

Inverse variation implies negative relationship. This means that as one of the quanties being compared increases the other decreases and vice versa..

4 0

1 year ago