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inna [77]
3 years ago
6

Solve y=-1/4x+2 2x+8y=-40

Mathematics
1 answer:
PolarNik [594]3 years ago
5 0

Answer:

No solution

Step-by-step explanation:

This is just a simple system of equations.

y=-1/4x+2

8y+2x=-40

Get the same variables onto their corresponding sides, so it will look like this:

y=-1/4x+2

8y=-2x-40

Now here, you have to be careful, because to solve for the system of equations, you need to make sure you are multiplying the equation proportionately.

8y=-2x+16

8y=-2x+40.

But here you see that they share the same variables in a similar format, but their values are supposed to be different, meaning that this equation is a false claim. So you would respond to the question as "no solution.

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Natali [406]

Answer:

3/2

Step-by-step explanation:

if u divide two fractions, it is same as multiplying with its reciprocal

3 0
3 years ago
If a certain trip takes 40 minutes when you travel 50 miles per hour, how many minutes would it take if you travel 40 miles per
vitfil [10]

Answer:

It would take 50 minutes

Step-by-step explanation:

<u>Distance, velocity and time</u>

The speed is the rate at which the distance changes with respect to time. If x is the distance, t is the time, the speed v can be obtained by

\displaystyle v=\frac{x}{t}

We know the trip takes 40 minutes when traveling at 50 miles/hour. The distance can be determined by isolating x in the above equation

x=vt

The given time is expressed in minutes, we need to convert it to hours. 40 minutes is \frac{40}{60}=0.6666...\ hours. The distance is

\displaystyle x=(50)(0.666..)=33.33\ miles

If the speed was 40 miles/hour, the same distance would be covered in t hours, taken from the above equation as

\displaystyle t=\frac{x}{v}

t=\frac{33.33}{40}=0.8333\ hours = 0.83333*60= 50\ minutes

4 0
3 years ago
Read 2 more answers
rita reads 3 fiction books for every 2 non-fiction books.Which ratio represents the number of non-fiction books rita has read wh
Fudgin [204]

Answer:

6 nonfiction books

Step-by-step explanation:

if it's fiction to non 9:6

if it's non to fiction 6:9

(you may need to simplify)

5 0
3 years ago
How would i need to do this??
lana66690 [7]
Find the numbers and place them in for the letters
4 0
2 years ago
The green line below
kenny6666 [7]

Answer:

B, C, D, & E

Step-by-step explanation:

All lines intersect the x axis and y axis so we know B and D are correct. All graphs are in the xy plane unless i (\sqrt{-1}) is involved, or C. It crosses the center (origin) of the entire plane so it crosses the origin, or E.

3 0
3 years ago
Read 2 more answers
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