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3 years ago

What is the relationship between fractions and decimals

Mathematics

1 answer:

NikAS [45]3 years ago

4 0

Both can be transformed into each other

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An=−5n+90 i dont know it

olga2289 [7]

I am guessing your problem should read...

A) n = -5n + 90 (isolate the variables by adding 5n to each side)
   +5n +5n
   6n = 90 (since we don't want to know what 6n's are worth, divide by 6)
6n/6 = 90/6
   n = 15

3 0

3 years ago

Solve the following system of equations algebraically. State the coordinates of the solution.

Anna35 [415]

Answer: (1, 3)

Explanation:
2x + 4x - 1 = 5
6x = 6
x = 1
y = 4(1) - 1
y = 4 - 1
y = 3

4 0

3 years ago

30 lbs of potatoes cost $360. How much would 13 lbs cost?

gregori [183]

Answer:

$156

Step-by-step explanation:

To find how many pounds of potatos an amount is, it's valuable to find how much *one* pound is

With just dividing both sides by 30, we can get that one pount of potatos costs $12

Since we want how much 13 pounds we cost, simply multiple 12 by 13 which gives us an amount of $156

6 0

3 years ago

Read 2 more answers

Students in a high school mathematics class decided their term project would be a study of the strictness of

faltersainse [42]

Answer:

The answer is observational study

5 0

3 years ago

A. y = 8 − 7x<br> B. y = 7x + 8<br> C. y = 7x − 8<br> D. y = 8x − 7

Anna71 [15]

Answer:

I'm getting

y=-7x+8

The 7 is negative for me..You should maybe try yourself too and see what you get I might have made a mistake

Step-by-step explanation:

I'm guessing you live somewhere in the U.S. so I'll use the equation you use there

Equation:

$y = mx + b$

$m = \frac{y1 - y2}{x1 - x2}$

first pick two points

I'll pick (0,8) and (1,1)

$m = \frac{8 - 1}{0 - 1} = \frac{7}{ - 1 } = - 7$

this means that the slope is -7

So far the equation will look like this

$y = - 7x + b$

to get b pick one point, I'll pick (0,8) and replace y and x

$8 = - 7 \times 0 + b$

when you solve this you'll get b

$b = 8$

So the equation will look this

$y = - 7x + 8$

7 0

3 years ago