How can i Multiply. ×2/7*3/5

Answers

Answer 1

Answer: 2/7 times 2 by 5 and times 7 by 5 also then that would equal 10/35
then you times 3 by 7 and times 5 by 7 to get 21/35 then add 10 and 21 to get 31 then it will be 31/35 then try to reduce it but u cant so the answer is 31/35

Answer 2

Answer: you first line them up and you wanna find the lcd and then remember what you do to the bottom you do to the top so

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Explain how you would create opposite terms for the x-variable in this system.
3x - 6y = -8

-1/3x+ 4y = 6

Answers

Answer:

Sample Response: To create opposite terms for the x-variable, you need to multiply the second equation by a number that will result in the x term becoming –3x. That number would need to be a multiple of the denominator, which is 3. Multiplying the second equation by 9 would create opposite terms for the x-variable.

Step-by-step explanation:

Answer:

Your answer would be, You can use the Elimination Method, by Multiplying, One or Both Equations by a Constant.

Solve System of Linear Equation:

3x - 6y = -8, -1/4x + 4y = 6 ====> y = 32 /21; x = 8 / 21

Steps:

[ 3x - 6y = -8, -1 / 4x + 4y = 6 ]

Isolate x for 3x - 6y = -8: x = -8 + 6y / 3

3x - 6y = -8

Add 6y both sides:

3x - 6y + 6y = -8 + 6y

Simplify:

3x = - 8 + 6y

Divide Both sides by 3:

3x / x = -8 / 3 + 6y / 3

Simplify:

x = -8 + 6y / 3

Substitute:

x = -8 + 6y / 3

[ 1 / 4 * -8 + 6y / 3 + 4y = 6 ]

Isolate:

-1 / 4 -8 + 6y / 3 + 4y = 6

y = 32 / 21

For x = -8 + 6y / 3

Substitute:

y = 32 / 21

x = -8 + 6 / 3 * 32 / 21

-8 + 6 / 3 * 32 / 21

x = 8 / 21

The Solution to the Systems of Equations are: y = 32 / 21; x = 8 / 21

Hope that helps!!! : )

Which graph shows y= (-5x) -4?

Answers

Answer:

Graph A

Step-by-step explanation

I look at the y-intercept first, and the y-intercept is -4, so looking at each graph you can see both A and D have y-intercepts of -4, since the line intercepts, or goes through the y-axis (the vertical line of the graph) at -4.

Then, you look at the variable that's changing, which is -5x. Since it's a negative, A is the graph that is negatively decreasing, because of its position on the graph. The line is going down, starting in the negative side.

Let s be an integer. Alonso claims that -s must always be less than 0. IIiana claims that -s is only sometimes less than 0. Whose statement is correct? Help please.

Answers

Iliana is correct since an integer means a whole number that is not a fraction, which includes negative AND positive numbers. If s=4 than -s is negative (-4) But if we plug in a negative integer, like -5, the negative signs are eliminated and it becomes positive, therefore Alonso is wrong (-s=-(-5)=5) If the question was about a natural number Alonso would have been right since natural numbers are only from 0 and above

What is the value of the function when x = 2?

Answers

Answer:

It would be -2.

Have an awesome day!

Which of the following is equivalent to 3/4a-6=1/4

Answers

$(3)/(4)x-6=(1)/(4)\ \ \ \ |\cdot4\n\n3x-24=1\ \ \ |+24\n\n3x=25\ \ \ \ |:3\n\nx=(25)/(3)\n\nx=8(1)/(3)$

How do you do, Increase £28 by 7%

Answers

The best thing is to find 1%. In order to do this, divide £28 by 100 & this gives you £0.28, then multiply this by 7 (as you're looking for 7%), and this gives you £1.96. You've then got to add these together, and that gives you £29.96Hope this helps :)

I would find 5% so find ten percent which is £2.80 ( you just divide it by ten ) then half it £1.40 after that find 1% which is 28p (divide by 100) then add £1.40 and 28p which is £1.68 then add it to £28 which is ££29.68. That is what I would do but people like to do it other ways so..... Hope this helped you on how to answer these sort of questions

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