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gtnhenbr [62]
3 years ago
13

Help! To solve this system of equations by elimination, what operatfon could be used to eliminate the x-variable and find the va

lue of y?
6x + 5y = 2
4x + 2y = 8
es )
A)
subtract 2 times the second equation from 3 times the first equation
B)
subtract 3 times the second equation from 2 times the first equation
9
subtract 5 times the second equation from 2 times the first equation
D)
subtract 2 times the second equation from 5 times the first equation
Mathematics
1 answer:
NeTakaya3 years ago
7 0

Answer:

c)

subtract 5 times the second equation from 2 times the first equation

Step-by-step explanation:

subtract 5 times the second equation from 2 times the first equation

This will make the coefficient of the y variable 10

for both equations

10y - 10y = 0

leaving only x

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Are the equations y – 5 = 2(x – 1)and y - 3 = 2(x + 3) the same equation? Explain​
steposvetlana [31]

Answer:

No.

Step-by-step explanation:

y - 5 = 2(x - 1)

y = 2x + 3

y - 3 = 2(x + 3)

y = 2x + 9

8 0
3 years ago
Last year, an orange tree produced 36 oranges. This year, it produced fewer than 10. What are the possible values for how many f
weeeeeb [17]

Answer:

d : [ 0 , 26 ]

Step-by-step explanation:

Given:-

- The oranges produced last year, x = 36

- The oranges produced this year, y < 10

Find:-

What are the possible values for how many fewer oranges were produced from the tree this year

Solution:-

- The possible values for how many fewer oranges were produced this year relative to last can be determined by solving an inequality that signifies a difference (d) between last year and this year production as follows:

                                 d = x - y

                                 d = 36 - (<10)

- To remove the inequality from Right hand side we we can shift it to left hand side by inverting the inequality sig, since last production is exactly known we have:

                                d≥36 - 10

                                d≥ 26

- So the number of oranges produced are at least 26 less than last year and lower bound would be if there is no orange produced this year. Hence, the range is:

                               d : [ 0 , 26 ]                          

4 0
3 years ago
you have 1000 to invest in an account and you need to have 1500 in one year what interest rate would you need to have in order t
Anna007 [38]

Answer: 42.7%

Step-by-step explanation:

A = p (1+r/n)^nt

1500 = 1000 (1 + r/4)^4x1

r = 42.673

3 0
3 years ago
Solve: (4p^3) x (-3p)
Firdavs [7]

Answer:

-12p ^4

Step-by-step explanation:

4p^3 * -3p

-3 * 4 = -12

p^3 *p

use the math rule :

a^n * a^m = a^(n+m)

therefore

p^3 * p^1 = p ^(3+1)

= p^4

= <u>-12p ^4</u>

4 0
4 years ago
The expression (3x? is equivalent to cx”. What is the value of c?
Alinara [238K]

Answer:

c=3

Step-by-step explanation:

3 0
3 years ago
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