All categories

4 years ago

Which is a solution -2x-y=1 and -4x-2y=-1

Mathematics

1 answer:

grin007 [14]4 years ago

7 0

Answer:

No solutions.

Step-by-step explanation:

-2x - y = 1

-4x - 2y = -1 Multiply the first equation By -2:

4x + 2y = -2 Adding:

0 = -3

which is absurd so there are no solutions.

You might be interested in

Subtract and simplify.<br><br> (y2−3y−5)−(−y2−7y+4)<br> *Both Y's with no variable are squared

natali 33 [55]

=(y2-3y-5)-(-y2-7y+4)
=y2-3y-5+y2+7y-4
=2y2+4y-9

Hope this helps! :)

3 0

3 years ago

Tasha plans to tile the floor in her room with square tiles that are 1/4 foot long. Will she use more or fewer tiles if she is o

Allisa [31]

She will need less tiles because the common dinominator of 4 and 3 is 12.
1/4 =3/12 and 1/3 = 4/12.
do as you see 1/3 is greater than 1/4 therefore she will need less tiles

7 0

3 years ago

How can you determine the period of a graph

Vlad1618 [11]

Answer:

You need to find the cycle. It will be easier to show if a graph with it was shown

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Elise is making punch for the party that requires 2 parts of fruit juice for every 5 parts of ginger ale. To make the punch, she

dalvyx [7]

Given:

Elise is making punch for the party that requires 2 parts of fruit juice for every 5 parts of ginger ale.

To make the punch, she uses 18 ounces of fruit juice and 3 containers of ginger ale.

To find:

The number of ounces in each container of ginger ale.

Solution:

Let n be the number of ounces in each container of ginger ale.

According to the question, the ratio of fruit juice and ginger ale is 2:5. it means,

$\dfrac{\text{Fruit juice}}{\text{Ginger}}=\dfrac{2}{5}$

$\dfrac{18}{\text{Ginger}}=\dfrac{2}{5}$

$5\times 18=2\times \text{Ginger}$

$90=2\times \text{Ginger}$

Divide both sides by 2.

$45=\text{Ginger}$

So, ginger required for punch is 45 ounces.

Number of containers = 3

Number of ounces in each container of ginger ale = n

Number of ounces in 3 containers of ginger ale = 3n

Now,

$3n=45$

Divide both sides by 3.

$n=15$

Therefore, 15 ounces are in each container of ginger ale.

6 0

3 years ago

Factor x3 – 7x2 – 5x 35 by grouping. what is the resulting expression? (x2 – 7)(x – 5) (x2 – 7)(x 5) (x2 – 5)(x – 7) (x2 5)(x –

mars1129 [50]

The factored expression ofx^3 - 7x^2 -5x +35 is (x^2 - 5)(x - 7)

<h3>What is an expression?</h3>

An expression is an algebraic term used for a mathematical statement that includes addition subtraction multiplication and division

x^3 – 7x^2 – 5x + 35

factor the given equation

x^2(x – 7) – 5(x - 7)

Factor out x - 7

(x^2 - 5)(x - 7)

Therefore, the factored expression is (x^2 - 5)(x - 7)

To learn more about the factored expression visit:

brainly.com/question/723406

7 0

2 years ago