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Serga [27]
3 years ago
12

Solve this system of equations for x using the addition method. 5x+3y=10 3x-4y=61

Mathematics
1 answer:
AleksAgata [21]3 years ago
4 0

Answer:

223/29

Step-by-step explanation:

5x+3y=10 . multiply by 4

3x-4y=61 .  multiply by 3

20x+12y=40

+  9x-12y=183

_____________

29x-0y = 223 . divide both sides by 29

   x = 223/29

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Roman55 [17]

Answer:

pizza hut

Step-by-step explanation:

top 10 pizza places true or false

3 0
3 years ago
Solve for x in the first equation, then solve the system using substitution. Write your answer as (x, y).
OleMash [197]
2x - 6y = 14
2x = 6y + 14
x = 3y + 7.....so sub in 3y + 7 for x in the other equation

4x - y = 9
4(3y + 7) - y = 9
12y + 28 - y = 9
12y - y = 9 - 28
11y = - 19
y = -19/11

x = 3y + 7
x = 3(-19/11) + 7
x = -57/11 + 7
x = -57/11 + 77/11
x = 20/11

solution is : (20/11, -19/11) <==
5 0
3 years ago
4. Tests are performed to determine the Tool Life of a high speed steel single edge cutting tool. At a cutting speeds (v) of 180
podryga [215]

Answer:(a)   n=0.233

Step-by-step explanation:

Given

We Know according to Taylor tool life

VT^n=c

V=cutting speed

T=tool life

n=tool life exponent

c=constant

180\times \left ( 4.25\right )^n=110\times \left ( 35\right )^n

\frac{180}{110}=\left ( \frac{35}{4.25}\right )^n

1.636=\left ( 8.235\right )^n

taking log both side

\ln \left ( 1.636\right )=n\ln \left ( 8.235\right )

n=0.233                

3 0
3 years ago
Solve the proportion:
Serjik [45]

Answer:

15

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
For all real values of m,<br> 8 + 3(m - 5) =?
sineoko [7]

Answer:

We have the value as 3m-7

Step-by-step explanation:

It is given that we have the real number m. Now we are required to find the simplified form or the value of the expression: 8 + 3(m - 5)

Thus we can write it as:

8 + 3(m - 5)\\=8 + 3m-3\cdot \:5

Here we have to use the property:

a\left(b-c\right)=ab-ac

So now we have:

8 + 3m-3\cdot \:5\\=8+3m-15\\=3m-7

So this is the required final value of the expression.

7 0
4 years ago
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