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Nina [5.8K]
3 years ago
12

4x - (x - 5) + 3 = -1

Mathematics
2 answers:
vladimir1956 [14]3 years ago
8 0

Answer:

- 3

Step-by-step explanation:

Step 1:

4x - ( x - 5 ) + 3 = - 1

Step 2:

4x - x + 5 + 3 = - 1

Step 3:

3x + 8 = - 1

Step 4:

3x = - 9

Answer:

x = - 3

Hope This Helps :)

kap26 [50]3 years ago
7 0

Answer:

x = 3

Step-by-step explanation:

First we know that you have to do parenthesis because, of PEDAS so the problem would look like 4x - (x-5)+3=-1. You would first because, it is always 1 outside of parenthesis it would now look like 4x - x +5 +3=-1. Next you would combine like term 3x +8 = -1. Next you would subtract 8 from both sides 3x = 9. Next you would divide 3 from both sides. x=3

Therefore your answer would be x = 3

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identify the equation that does not belong with the other three. explain your reasoning. 6+x=9 | 15= x+12 | x+9 =11 | 7+x=10
Katena32 [7]
Answer is x+9=11

6+x=9
x=3

15=x+12
x=3

7+x=10
x=3

x+9=11
x=2

So x+9=11 has a different x value than the rest of the equations. So it doesn't belong with the other three.
6 0
3 years ago
Wich is corect btw this is homework
Amanda [17]

Answer:68 with the little two

Step-by-step explanation:

5 0
3 years ago
The area of a tennis court is 312 yd^2 How many ft^2 is that? *
Travka [436]
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4 0
2 years ago
PLEASE HELP ASAP!!!
barxatty [35]

Answers:

  • <u>24000 dollars</u> invested at 4%
  • <u>18000 dollars</u> was invested at 7%

======================================================

Work Shown:

x = amount invested at 4%

If she invests x dollars at 4%, then the rest (42000-x) must be invested at the other rate of 7%

She earns 0.04x dollars from that first account and 0.07(42000-x) dollars from the second account

This means we have

0.04x+0.07(42000-x)

0.04x+0.07*42000-0.07x

0.04x+2940-0.07x

-0.03x+2940

This represents the total amount of money earned after 1 year.

We're told the amount earned in interest is $2220, so we can say,

-0.03x+2940 = 2220

-0.03x = 2220-2940

-0.03x = -720

x = -720/(-0.03)

x = 24000 dollars is the amount invested at 4%

42000-x = 42000-24000 = 18000 dollars was invested at 7%

----------------------

As a check, we can see that

18000+24000 = 42000

and also

0.04x = 0.04*24000 = 960 earned from the first account

0.07*18000 = 1260 earned from the second account

1260+960 = 2220 is the total interest earned from both accounts combined

This confirms our answers.

7 0
3 years ago
A company purchased a machine for $970,000. the machine has a useful life of 12 years and a residual value of $4,500. it is esti
harina [27]
Cost less salvage value = 970,000 - 4500 = 965,500
Capacity of machine = 1,000,000 units.
units consumed at the end of second year = 200,000 + 300,000 = 500,000 units.
Capacity remaining = 1,000,000 - 500,000 = 500,000 units
Book value at end of second year = (500,000/1,000,000)*965,500 + 4500
= $487,250
8 0
3 years ago
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