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ivolga24 [154]
3 years ago
11

2x+3y=23 3x-y=7 Solve for x

Mathematics
1 answer:
NeTakaya3 years ago
5 0
2x + 3y = 23...........................(1)

3x  - y  =  7   Multiply by 3:-

9x - 3y = 21      Adding this to equation (1):-

11x = 44
x = 

Plug this into equation (1):-
2(4) + 3y = 23

3y = 15
y = 5

Answer is x = 4, y = 5

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What is 13.989 to the nearest hundredth place?
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Answer:

13.99

Step-by-step explanation:

So the hundredths place is the second digit after the decimal point in this case it is 8.

So the number after it is 9 so we round up.

The number after 8 is 9

So 13.989 to the nearest hundredth place is 13.99

3 0
3 years ago
How to add and subtract radical expressions
Ivanshal [37]
Subtract them left to right

4 0
3 years ago
Tammy has a job that has a weekly salary of $1,200 but wants to switch a job that has a monthly salary of $11,700. How much more
iogann1982 [59]

Answer:

$1529.8

Step-by-step explanation:

Given:

Tammy has a job that has a weekly salary of $1,200.

But wants to switch a job that has a monthly salary of $11,700

Question asked:

How much more will she make per week if she switch to the new job?

Solution:

Monthly salary of a new job, she wants to switch = $11,700

Weekly salary  of a new job, she wants to switch = ?

As we know : 1 month = 4.286 Weeks

Salary of 1 month for a new job, she wants to switch = $11,700

Salary of  4.286 Weeks  for a new job, she wants to switch =  $11,700

Salary of 1 Week  for a new job, she wants to switch = 11700\div4.286=\$2729.81

Now, we have to find that How much more she will make per week,  if she switch to the new job.

More money she will make for a new job she wants o switch = Weekly salary for a new job, she wants to switch  - Weekly salary of current job

More money she will make, for a new job = $2729.8 - $1200 = $1529.8

Therefore, she will  make $1529.8 more  per week if she switch to the new job.

3 0
3 years ago
Can I do 50 quizzes in 2 weeks? Each takes about 5 minutes
rodikova [14]
So.
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Let's get started with formulas.
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I KNOW you hate formulas!! So do I, but we have to use them. No "buts". 
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So, how many minutes are in 2 weeks?
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Search it up. For your convenience, it is 20,160 minutes.
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Well, I think you have your answer, since each quiz is 5 minutes, 5 times 50 (5 x 50) is 2,500 minutes.
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Yes, you can do 50 quizzes and MUCH MUCH more in 2 weeks.
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Hope I helped!!
8 0
3 years ago
Read 2 more answers
2x + y = 9<br>3x - y = 16​
snow_tiger [21]

Answer:

X=7 y=-5

Step-by-step explanation:

2x+y=9

3x-y=16

use the process of elimination finding out what works for one problem and try it on the other until they both work

7 0
3 years ago
Read 2 more answers
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