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Airida [17]
3 years ago
6

What is x=5y-1 x+2y=13

Mathematics
2 answers:
Anon25 [30]3 years ago
5 0
<span>x=5y-1
x+2y=13 => 5y -1 +2y = 13 => 7y = 14 => y = 2 => x = 9;</span>
djverab [1.8K]3 years ago
5 0

Answer: x = 9, y = 2

Step-by-step explanation:

plug in values and solve.

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Same question, but different answer option.
andriy [413]

Answer:

5f - 3, I'm assuming there was a typo in the answer choices.

Step-by-step explanation:

10f - 5f + 2 - 5

5f - 3

3 0
2 years ago
Please fix the question and help me do it the right way
Anestetic [448]

the last step is wrong because we multiply the powers in this case we do not subtract them.

we use power subtract in division.

we use power multiplication when we raise to power and the root is power like square root of x

\sqrt{x}  =  {x}^{ \frac{1}{2} }

so

\sqrt[3]{x}  =  {x}^{ \frac{1}{3} }

in our case

this step is wrong

2x \times  \sqrt[3]{ \frac{2}{y}  \times  \frac{y}{y} }

it should be

2 x \times  \sqrt[3]{ \frac{2}{y}  \times  \frac{ {y}^{2} }{ {y}^{2} } }

so we get

2x \times  \sqrt[3]{2 {y}^{2} \times  \frac{1}{ {y}^{3} }  }

=  \frac{2x}{y}  \times  \sqrt[3]{2 {y}^{2} }

3 0
2 years ago
The area of the ice surface of a skating rink is about 221 yd2. The rink is about the shape of a rectangle where the ice-surface
ella [17]
Check the picture below

notice, the length cannot be a negative value.. so is not -17

6 0
3 years ago
Following Quotient expression
IRINA_888 [86]

Answer:

Second choice

and the last 2 choices

Step-by-step explanation:

32m/16m=2 and our constant is 3 not 2 so not choice A

4m^2/2m=2m so possible 6m/2m=3 so choice B

4m/2m=2 and our constant is 3 not 2 so not choice C

10m/5m=2 same reason as A and C

10m^2/5m=2m possible...15m/5m=3 so choice E

32m^2/16m=2m and 48m/16m=3 so this last choice too

8 0
3 years ago
Suppose 3x+4y=52 and 5x+y= 30. What is the value of 8x-2y
grandymaker [24]

Answer:

12

Step-by-step explanation: If you made x, 4 and y, 5 then all equations would make sense if you change the letters to numbers.

IF

(3*4)+(4*10)=52

and

(5*4)+10=30

then

<h2>(8*4)-2*10=<u><em>12</em></u></h2><h2 />
6 0
3 years ago
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