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Margaret [11]
2 years ago
13

Please anybody help please

Mathematics
1 answer:
wel2 years ago
5 0

Answer:

x= -3 and y = 6

Step-by-step explanation:

so basically what you are trying to do is reduce into finding x and y

what you do is you want to find a number to multiply one of the equations in order to get the same x or y value does not matter which

so,...

we can do

either 20x or 15y

we will go with the smallest 15y

so for both equations multiply the whole thing by 5 for the first equation and by 3 for the second

5 x 5x+3y=3 --> 1

3 x 4x+5y=18 --> 2

we then get

25x+15y = 15 -->1

12x + 15y = 54 -->2

then now that you have the same Y values you can subtract ! which cancels out both the 15y

25x+15y = 15 -->1

- 12x + 15y = 54 -->2

13x =-39

so now x=-3 and all you have to do with x = -3 is sub this into either one of the equations that you started with  !

x = -3

5(-3) +3y =3

-15 + 3y = 3

3y = 3+15

3y=18

y = 6!

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Alenkinab [10]

Answer:

65.52 square feet

Step-by-step explanation:

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7 0
3 years ago
Use distributive property to remove the parentheses -5(-2v+3y-1)
RoseWind [281]

Answer:

10v+-15y+5

Step-by-step explanation:

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4 0
2 years ago
Solve the equation for x.
PIT_PIT [208]
Get unknowns on one side and know on other side.

Divide both sides by -2
X= -7
4 0
2 years ago
Please help my sister again I can’t stand her she’s making me mad
inna [77]

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7 0
3 years ago
Read 2 more answers
HELP HELP HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Arrange the functions in ascending order, starting with the function t
san4es73 [151]
If x is squared, that will be biggest by the end because it gets bigger the quickest. x^2 + 4 is always 4 greater than x^2, no matter what the value of x is.

5x+3 is always 3 greater than 5x also.

Besides that, you can rank them based on their slopes (5x < 7x < 8x, etc.)

So,
5x
5x + 3
7x
8x + 3
x^2
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You can also just say “eventually” means that they’re asking to find the values of each when x is really big. so just choose x=100, and plug that into each one.

So, to check that order:
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6 0
3 years ago
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