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Volgvan
3 years ago
12

2x+3y when x=10 and y=5 how do i solve

Mathematics
1 answer:
chubhunter [2.5K]3 years ago
4 0

Answer:

35

Step-by-step explanation:

When x=10 and y=5.. And 2x + 3y

Then put it as:

2(10) + 3 (5)

Solve:

2(10) = 20

3(5) = 15

20 + 15 = 35

[RevyBreeze]

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X-3/5 = y-7/2<br> 11x=13y
Diano4ka-milaya [45]

Answer:

y = -319/20| x = 377/20

Step-by-step explanation:

/| 7/2-x-y-(3/5) = 0| -11*x-(13*y) = 0

We try to solve the equation: 7/2-x-y-(3/5) = 0

29/10-x-y = 0 // - 29/10-x

-y = -(29/10-x) // * -1

y = 29/10-x

We insert the solution into one of the initial equations of our system of equations

We get a system of equations:

/| -(13*(29/10-x))-11*x = 0| y = 29/10-x

-1*13*(29/10-x)-11*x = 0

2*x-377/10 = 0

2*x-377/10 = 0 // + 377/10

2*x = 377/10 // : 2

x = 377/10/2

x = 377/20

We insert the solution into one of the initial equations of our system of equations

For y = 29/10-x:  

y = 29/10-377/20

y = -319/20

We get a system of equations:

/| y = -319/20| x = 377/20

8 0
3 years ago
Solve for x in the literal equation −11 = xy + z.
Alisiya [41]

Answer:

x= -11/y-z/y

Step-by-step explanation:

Thanks for letting me Answer your question! If you have any more question you would like to know about you can ask me anytime and i will try my best to answer your question! If you don't have a question the don't forget to have a wonderful day and please consider making me Brainliest!

5 0
3 years ago
An energy drink company claims that its product increases students' memory levels. To support its claims, the company issues adv
dexar [7]
A) control group, they did not also survey 10 other ppl who took a placebo 
8 0
4 years ago
Read 2 more answers
A particle starts at the point P=(−5,−1,3) when t=0 and moves along a straight line toward Q=(−6,−6,8) at a speed of 9 cm/sec. L
navik [9.2K]

Answer:

Step-by-step explanation:

Given

Particle moves from P\ (-5,-1,3)\ to\ Q\ (-6,-6,8)

speed of particle is v=9\ cm/s

Unit vector in the direction of vector \vec{PQ} is given by

\hat{n}=\frac{\vec{Q}-\vec{P}}{|\vec{Q}-\vec{P}|}

\hat{n}=\frac{-}{\sqrt{(-1)^2+(-5)^2+(5)^2}}

\hat{n}=\frac{}{\sqrt{1+25+25}}

Now Position of Particle at any time is given by

\vec{r(t)}=velocity\cdot time\cdot direction

\vec{r(t)}=9\cdot t\cdot \frac{}{\sqrt{1+25+25}}

Parametric vector equation is given by

x=\frac{-9t}{\sqrt{51}}

y=\frac{-45t}{\sqrt{51}}

z=\frac{45t}{\sqrt{51}}

6 0
4 years ago
If 12 is replaced with 3 in the following set, what will happen to the value of the range? 28, 45, 12, 34, 36, 45, 19, 20
anzhelika [568]
The range is the number of units between the smallest and largest number. organising your numbers from smallest to largest:

12, 19, 20, 28, 34, 36, 45, 45

in your case 12 is the smallest number of your set. lowering it to 3 would increase the distance between the two numbers, therefore increasing the range

hope that helps :)
3 0
3 years ago
Read 2 more answers
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