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Effectus [21]
3 years ago
12

PLEASE HELP!!

Mathematics
2 answers:
sp2606 [1]3 years ago
5 0
Standard form is just putting (in this case) variables in alphabetical order. First we simplify- 2x+4=4y would become 1/2x+1=y. This is already in standard form, as numbers w/o variables come at the end. simplifying the next one is more tricky. first you get a variable/number alone-
9-2x-2y=4x+3
9-2y=6x+3
6-2y=6x
1-1/3y=x
1=x+1/3y
3=x+y
x+y=3
sorry if I was wrong and not of any help, But I do believe this is correct.
lbvjy [14]3 years ago
3 0
What standard for is is when all the variables are on one side in order, without being expressed as a decimal or fraction.

To put 2x+4=4y in standard form, first subtract 4 from both sides.

2x=4y-4
Now, subtract 4y from both sides.

2x-4y=-4

Now the equation is in standard form.

To put the next equation in order, first distribute -2 into (x-y) to get:

9-2x+2y=4x+3

Because one variable cannot be on both sides, subtract 4x from both sides.

9-6x+2y=3

Now subtract 9 to both sides:

-6x+2y=-6

My teacher last year did not like when the first variable in standard form was negative. If that is the case with your teacher, distribute -1 into everything on both sides of the equation. That would look like:

6x-2y=6

If your teacher is impartial, then you can leave there equation how it was.

So the answers are:

2x-4y=-4
-6x+2y=-6 (or 6x-2y=6)
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What isn't equivalent to 1/3
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6 0
3 years ago
Which fraction is less then 1/3 or 1/5
kolezko [41]

Answer:

1/12

Step-by-step explanation:

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Jackie has $150 to spend on books at Barnes and Noble. She has
I am Lyosha [343]

Answer:

she would buy 5 books

Step-by-step explanation:

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94 ÷ 20 = 4.7

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4 0
3 years ago
Kyle spend 1/5 of his money on clothing. He had 120 remaining. What was the cost of the clothes Kyle bought
dolphi86 [110]

Answer:

30 is the cost of clothes Kyle bought.

Step-by-step explanation:

Given: Kyle spend 1/5 of his money on clothing.

          Remaining money is 120.

Lets assume the total money Kyle had be "x".

∴ Money spent on clothes = \frac{1}{5}\times x= \frac{x}{5}

Now, putting up value in the equation to find the total amount of money.

We know, money remaining is 120

x-\frac{x}{5} = 120

Taking LCD subtract the fraction.

⇒ \frac{(x\times 5)- x\times 1}{5} = 120

⇒ \frac{5x-x}{5} = 120

⇒\frac{4x}{5} = 120

Multiplying 5 both side

⇒4x= 120\times 5

dividing 4 on both side.

∴x= \frac{120\times 5}{4}

∴ x= 150

Kyle has total 150 money to spend.

Kyle spent \frac{1}{5} of his total money on clothing.

⇒ cost of clothes kyle bought= \frac{1}{5} \times 150= 30

Hence, Kyle spent 30, which was the cost of clothes kyle bought.

6 0
3 years ago
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