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Nikolay [14]
3 years ago
6

What is the solution to the system of equations y= -5x +3 y=1

Mathematics
1 answer:
3241004551 [841]3 years ago
6 0
To find the solution to this, we need to use the substitution method.

y = -5x + 3

Substitute the value for y.

y =1

1 = -5x + 3

Now, solve for x.

1-3 = -5x + 3           Apply the inverse operation to both sides of the equation.
            -3

1-3 is -2

-2 = -5x

-5x/-5 = -2/-5 
x = 0.4

Final answer:-   x = 0.4     y = 1
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Can someone please help me
GREYUIT [131]

Answer:

63

Step-by-step explanation:

We can easily solve this problem using algebra as follows.

Let Meteorite B be expressed as x.

We know that the combined weight is 84 tons and that meteorite A is 3 times the weight of meteorite B. That means Meteorite B is x/3.

Based on that, let's form an equation:

x + \frac{x}{3} =84\\1 \frac{1}{3} x=84\\x=63

I hope this will help you :D

3 0
4 years ago
A line includes the points 2, 10 and 0, 2 what is its equation in slope intercept form ​
IRINA_888 [86]

Answer:

y = -4x + 2

Step-by-step explanation:

y = mx + b ( slope-intercept)

1. Find Slope:

\frac{y^2 - y^1}{x^2 - x^1}

Lets name 2 as y2 and 10 as y1. And 0 as x2 and 2 as x1.

\frac{2-10}{0-2}  =  \frac{-8}{2} = -4

m/slope = -4

2. Find y-intercept:

y = mx +b

2 = -4(0) + b

= 2 = b

Y-intercept/b = 2

3. Put into slope-intercept form:

y = mx + b

= y = -4x + 2

Hope that helps! :D

4 0
3 years ago
The price of a notebook has risen to $3.70 today. Yesterday's price was $3.20 . Find the percentage increase. Round your answer
nikklg [1K]

Answer:

16%

Step-by-step explanation:

Equation: \frac{new value-old value}{old value} * 100

\frac{3.70-3.20}{3.20}* 100= \frac{0.50}{3.20}* 100

0.15625 (round to .16)

16%

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cluponka [151]

Answer:

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Step-by-step explanation:

the y intercept was given (0,15)

to find the slope do rise/run

20 / -4 = -5

so the slope is -5

8 0
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