MATHEMATICS MIDDLE SCHOOL

-3.1x+7-7.4x=1.5x+6(x-3/2

Answers

Answer 1
Answer:

Answer:

x=8/9

Step-by-step explanation:

-3.1x+7-7.4x=1.5x+6(x-3/2)

-3.1x-7.4x+7=1.5x+6x-9

-10.5x-1.5x-6x=-9-7

-18x=-16

18x=16

x=16/18

simplify

x=8/9

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What is 3y = 15x - 12 in y = mx + b form ?

Answers

y=5x-4 is the equation of the line 3y = 15x - 12 in slope intercept form.

What is Slope of Line?

The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.

The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.

The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is

m=y₂-y₁/x₂-x₁

The given equation is  3y = 15x - 12

Three times of y equal to fifteen times of x minus twelve.

We need to convert it to slope intercept form y=mx+b to do this we have to isolate the y term and divide the equation coefficient by 3

Divide both sides by 3

y=15/3x-12/3

When fifteen is divided by three the result is five and when twelve is divided by three we get four.

y=5x-4

Hence, y=5x-4 is the equation of the line 3y = 15x - 12 in slope intercept form.

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The answer to the question is: y=5x-4

to ammend the US constitution 3/4 of the states must approve the ammendment. if 35 states approve an ammendment wil the constitution be amended

Answers

3/4 to ammend
50 states
so...
35/50
find a common denominator 
i will use 100
35/50 = 70/100
3/4 = 75/100
35/50 is less than 3/4
so no it will not

Can u tell me how to solve this promblem 4/7 plus 3/7

Answers

The answer to your question is:  Yes, I can.
=================================
Although you haven't asked me to actually show you how, I'm already here
so I might as well just go on through it.


Before we tackle that math problem, I want to discuss a couple of other
different ones, and I want you to solve both of them.

Problem #1:     4 (cows) + 3 (cows)
Can you solve it ?
Did you say " 7 (cows) " ?
Nice work.

Problem #2:     4 (blue bicycles) + 3 ( blue bicycles)
This one is a little harder.
Can you solve it on your own ?
What's that ?  Did you say " 7 (blue bicycles) " ?
Excellent !

I think you're ready for the original problem now:

       4 (sevenths) + 3 (sevenths) = ?

I hope you said " 7 (sevenths) " .
You did ?  Terriffic !
That's the correct solution . . . . . ⁷/₇.

Teachers usually want to see fractions simplified.  That doesn't
change the answer, it's just a neater way to write it.

Any fraction that has the same number on top and bottom is always the same as ' 1 '.

⁷/₇ = 1 , so if you see the answer to this one in a book, it'll say ' 1 '.
It's pretty simple..
All you do is think about the numerator (the top number)
And the denominator (the bottom number)

If the denominators are the same number (which they are) then you keep that the same

And the numerators must be added together

In this case it would be 4+3 = 7

And the denominator stays the same
So your answer will be 7/7



If you want to get even higher with your answer, you can mention how 7/7 is also a WHOLE number

Leo reads 10 pages in 1/2 hour. What is the unit rate for pages per hour? For hours per page?

Answers

10pages/.5hour
To figure out how many pages he can read in one hour, multiply the numerator and denominator by 2. 
Leo can read twenty pages in one hour.
Hours per page is done like this
.5hour/10pages
To find out how many hours it takes to read one page, divide the top and bottom by ten.
It takes him .05 of an hour (3 minutes) to read one page.

Final answer:

The unit rate for Leo's reading is 20 pages per hour and 0.05 hours per page.

Explanation:

To find the unit rate for pages per hour, we need to adjust Leo's reading speed to reflect a full hour rather than half an hour. Since he reads 10 pages in half an hour, then in a full hour, which is twice as long, he would read twice as many pages. So, Leo's rate in terms of pages per hour is 20 pages per hour.

To find the unit rate for hours per page, we flip the ratio. So instead of looking at it as 'pages over hours,' we're looking at it 'hours over pages'. Leo reads 10 pages in half an hour, that is 1 page in 1/20 of an hour (or 0.05 hours). Therefore, his rate in terms of hours per page is 0.05 hours per page.

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What is In 7 days, a group of workers can plant 21 acres. What is their rate in acres per day?

Answers

So do 21/7 to give you how much they do in a day. The answer is three so they do 3 aceres in a day.

Wich letter is beside the hypotenuse??

Answers

Hypotenuse and Leg Leg^2+leg^2=hyp^2
F.
D^2 + e^2 will equal f^2
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