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Bogdan [553]
3 years ago
8

5x = –25 + 5y 10y = 42 + 2x

Mathematics
1 answer:
Novay_Z [31]3 years ago
3 0
To solve this equation there are many ways you can do to solve. One way is to simply substitute one variable for another.

5x = 5y - 25
X = y - 5

10y = 42 + 2x
10y = 42 + 2(y - 5)
10 y = 42 + 2y - 10
8y = 32
Y = 4.

X = y - 5
X = 4 - 5
X = -1.

P(X,y) = P(-1,4). This would be the solution or the point where they would intersect.
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The area of the rectangle to the right is 68 square feet
den301095 [7]

Step-by-step explanation:

We know that

  • Area of the rectangle=Length×Breadth

➝(x+4)(x-9)=68

➝x(x-9)+4(x-9)=68

➝x^2-9x+4x+-32=68

➝x^2-5x-32=68

➝x^2-5x=68+32

➝x^2-5x=100

➝x^2-5x-100=0

  • The equation has no real roots hence this situation can't be possible
6 0
3 years ago
Any answers on this?
anygoal [31]

Perimeter is the distance all around the triangle, so take the side lengths and add them up in an expression.

(2x) + (4x - 2) + (3x - 1)

Combine like terms.

9x - 3

Your answer is D) 9x - 3.

6 0
3 years ago
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mr banks left work at 5 15 P.M it took him 1 1/4 hours to drive home . at what time did mr banks drive home? worth 22 points
Zepler [3.9K]
Using the information that you've provided, I would say that Mr. Banks drove home at 5:15, but if you're asking what time he arrived home that would be at 6:30. :))
7 0
3 years ago
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Can someone tell me what the answer for this problem is? (and how you are able to get that answer)
exis [7]
\bf y=\cfrac{1}{2}(x-7)(x-7)

now, if you set y  to 0, so you can solve for "x", you'll notice, you'll get 7 twice, you can see it from (x-7) twice there, it has that root twice.

so, when x = 7, y = 0, that's the x-intercept, or so-called a solution or zeros.

now, it happens twice though, so, that simply means, the root of 7 has a multiplicity of 2  and is an even multiplicity, and even number, and when that happens, the graph doesn't really cross the x-axis, it simply bounces off of it.

so the graph goes down down, gets to 7, bounces back up, well, it made a U-turn, that's the vertex, at 7,0 as well.

to find the y-intercept, simply set x = 0, let's do so

\bf y=\cfrac{1}{2}(x-7)(x-7)\implies y=\cfrac{1}{2}(0-7)(0-7)\implies y=\cfrac{1}{2}(-7)(-7)
\\\\\\
y=\cfrac{49}{2}\implies y=24.5

so is at 0, 24.5

the stretch will be the coefficient in front of the function, in this case is 1/2, is stretches in relation to the y-axis by twice as much.
7 0
3 years ago
PLS HELP I WILL MARK BRAINLIEST
lorasvet [3.4K]

Answer:

$31.44

Step-by-step explanation:

29.95 * .05 = 1.49

29.95 + 1.49= 31.44 (you add because its tax)

hope this helps! :)


5 0
3 years ago
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