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kvasek [131]
2 years ago
9

5x + 3y = 7 4x + 5y = 3 How do I solve

Mathematics
2 answers:
Serhud [2]2 years ago
6 0

Answer:

9x+8y

Step-by-step explanation:

because you have to add the linked terms which are 5x and 4x, & 3y and 5y with if you add 5x and 4x together and 3y and 5y together you get 9x+8y

wel2 years ago
3 0

Answer:

9x+8y

Step-by-step explanation:

first you would take your liked terms and combine them.

1. 5x+4x=9x

2. 3y+5y=8y

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Let FS R be a finite set. (a) Prove that F is closed (b) Prove that every point in F is an isolated point.
Lorico [155]

Answer:

a) Suppose that F is ordered in ascending order: F = \{x_1,\ldots, x_n\}. Then, the complement of F can be written as

F^c = (-\infty,x_1)\cup (x_1,x_2)\cup (x_2,x_3)\cup \cdots \cup (x_{n-1}, x_{n})\cup (x_n,+\infty)

which is the union of a finite number of open intervals, then F^c is an open set. Thus, F is a closed subset of the real numbers.

b) Take an arbitrary element of F, let us say x_k. Now, choose a real number \epsilon such that

0 there are not other element of F, because \epsilon is less that the minimum distance between x_k and its neighbors.

In case that k=1 we only consider 0, and if k=n we only consider 0.

Then, all points of F are isolated.

Step-by-step explanation:

8 0
3 years ago
Can some one please help . Thanks I appreciate it.
Anon25 [30]
Here you go.

Good luck!

5 0
3 years ago
The recycling and reuse industry employs approximately 1,025,000 more workers than the waste management industry. Together they
NARA [144]

Answer:

Step-by-step explanation:

The recycling and reuse industry employs approximately 1,025,000 more workers than the waste management industry. This means that

Number of workers employed by The recycling and reuse industry = the number of workers employed by the waste management industry + 1,025,000

Let y = the number of workers employed by the waste management industry. Therefore

x = y + 1,025,000 - - - - - - 1

Since total = 1,275,000

x + y = 1,275,000 - - - - - - -2

Substituting equation 1 into equation 2, it becomes

y + 1,025,000 + y = 1,275,000

2y = 1,275,000 - 1,025,000

y = 250000/2 = 125000

x = y + 1,025,000 = 125000 + 1,025,000 = 1150000

The recycling and reuse industry employs 1150000 workers

The waste management industry employs 125000 workers

7 0
3 years ago
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Hunter-Best [27]

Answer:

8 + 13t

Step-by-step explanation:

Since 19t and 6t have the same variables

4 0
3 years ago
What are the 4 different ways you can solve a quadratic equation.
mars1129 [50]

Answer:

by \: using \: completing \: the \: square \: method \\ by \: using \: quadratic \: formula \:  \:  - b \:  plus \: or \: minus \frac{ \sqrt{ {b}^{2} - 4ac } }{2a}  \\ by \: factorizing \:  \\ this \: it \:  the \: only \: one \: i \: know \:

5 0
3 years ago
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