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3 years ago

Solve this eqution with work please also show work solve for x and y x=-y+5 y=-3x+3

2 answers:

7 0

The answer is x=−1 and y=6. You can solve it using a graph, substitution, or elimination.

tankabanditka [31]3 years ago

4 0

So you are given what x and y are. All you have to do is substitute and simplify.
Since y = -3x + 3
The y value in the first equation can be substituted for -3x + 3
I.e. x = - (-3x + 3) + 5
So where you see 'y' in the first equation, put in what y actually is.
Now simplify
x = 3x - 3 + 5 [two minuses makes a positive]
x = 3x + 2
-2x = 2
so x = 2/-2 = -1

With the value of x you found, substitute it in to find y
I.e. y = -3(-1) + 3
y = 3 + 3 = 6

So x = -1 and y = 6

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What is 6/13 rounded to the nearest half?

prohojiy [21]

6/13, when turned into a decimal, is equal to 0.4615384615... And so on. That decimal can be rounded to the nearest hundredth to become 0.46.

Is 0.46 closer to 0.5, or 0? When put on a number line, we can see how close it is to 0.5, which is the same as 1/2.

6/13, rounded to the nearest half, is 1/2.
Hope this helped =)

6 0

3 years ago

Read 2 more answers

A long time ago Dulani found an island shaped like a triangle with three straight shores of length 3 km 4 km and 5 km.He said no

VikaD [51]

To find the area of his exclusion zone you would need to understand that a triangle with dimensions of 3, 4, and 5 represent a right triangle.

This means the exclusion zone would be applied to the base and the height of the triangular space.

You would add 2 km to the 3 km, and 2 km to the 4 km to create a new height of 5 km and a new base of 6 km.

Please see the attached picture to understand this.

You will find the area of the total space created by the new triangle and subtract the space represented by the original triangle to find the area of the exclusion zone.

(1/2 x 6 x 5) - (1/2 x 4 x 3)
15 km² -6 km² equals 9 km².

The exclusion space is 9 km².

5 0

3 years ago

(m 5/6) (m1/6) ^7 = m^x

nadezda [96]

Answer:

x = 2

Step-by-step explanation:

Here, we want to find the value of x

(m^5/6)(m^1/6)^7 = m^x

= (m^5/6)(m^7/6) = m^x

Using the law of indices for power multiplication

m^(5/6 + 7/6) = m^x

m^(12/6) = m^x

m^2 = m^x

we simply equate the powers in this case since the base are equal

Thus we have

x = 2

3 0

2 years ago

Which inequality represents the problem? A duck can dive below sea level at a rate of 5 feet per second. How many seconds will i

jok3333 [9.3K]

it will take the duck 5.8 seconds to reach 29 feet of depth.

7 0

3 years ago

I need help with these three problems.... please help me????

viva [34]

12. Answer: 2130

Step-by-step explanation:

T = -0.01y + 10.6

9.2 = -0.01y + 10.6

-10.6 -10.6

-1.4 = -0.01y

÷-0.01 ÷-0.01

140 = y

"y" represents the number of years after 1990

1990 + 140

= 2130

**************************************************************

13. Answer: -0.0036° per foot

Step-by-step explanation:

Since the relationship is linear, then we can set up the values as x, y coordinates and use the slope formula to find the rate of degrees over feet.

(6562, 63) and (16405, 28)

rate = $\frac{28 - 63}{16405-6562}$

= $\frac{-35}{9843}$

= $\frac{-0.0036}{1}$

**************************************************************

14. Answer: $0.28 per kWh

Step-by-step explanation:

Same reason as #13

(200, 55) and (500, 140)

rate = $\frac{140-55}{500-200}$

= $\frac{85}{300}$

= $\frac{0.28}{1}$

5 0

3 years ago