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aalyn [17]
3 years ago
11

Please help i do not understand.. ):

Mathematics
1 answer:
Paraphin [41]3 years ago
4 0

Answer:

Your answer should be 18, that's what I got:)

Step-by-step explanation:


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2+3x=-4(5+2x) solve for x, help please
Misha Larkins [42]

Answer:

x=-2

Step-by-step explanation:

2+3x=-4.(5+2x)

Expand  \: the  \: parentheses:

2 + 3x =  - 4.5 - 4.2x

Simplify \:  the \:  arithmetic:

2 + 3x =  - 20 - 4.2x

Solve \:  by \:  distributing:

2 + 3x =  - 20 - 8x

Group  \: all \:  x  \: terms \:  on \:  the  \: left  \: \\  side \:  of  \: the \:  equation

2 + 3x =  - 20 - 8x

Add  \: 8x \:  to  \: both \:  sides:

2 + 3x + 8x =  - 8x  + 8x

Simplify  \: the \:  arithmetic:

11x + 2 =  - 20 - 8x + 8x

Group \:  like  \: terms:

11x + 2 =  - 8x + 8x - 20

Group \:  all  \: constants \:  on \:  the \:  right  \\  \: side \:  of  \: the \:  equation

11x + 2 =  - 8x + 8x - 20

Subtract \:  2  \: from  \: both \:  sides:

11x + 2 -  =  - 20 - 2

Simplify \:  the  \: arithmetic:

11x =  - 20 - 2

Simplify  \: the \:  arithmetic:

11x =  - 22

Isolate \:  the \:  x

11x =  - 22

Divide  \: both \:  sides \:  by  \: 11:

\frac{11x}{11}  =  \frac{ - 22}{11}

Simplify \:  the \:  fraction:

x =  \frac{ - 22}{11}

Find  \: the \:  greatest \:  common \:  factor  \\  \: of  \: the  \: numerator \:  and  \: denominator:

x =  \frac{ - 2.11}{1.11}

Factor \:  out  \: and \:  cancel  \: the \:  greatest   \\ \: common \:  factor:

x =  - 2

Thanks!!!!!!!

4 0
3 years ago
Read 2 more answers
1. You purchase a car using a $20,000 loan with a 5% simple interest rate.
Vesna [10]

Answer:

A:4000

B:2000

C: More interest on the 4 year loan

Step-by-step explanation:

5% of 20000 is 1000 so the amount of years times the amount of interest per year. 4 years is (4x1000=4000) and 2 years is (2x1000) 4000 is greater than 2000.

if this is incorrect it is using rising interests just let me know and ill edit

5 0
3 years ago
Read 2 more answers
A swimming pool's large drain will empty the pool in 3 hours while its smaller drain takes 6 hours. If both drains are opened, h
makkiz [27]

Answer:

2 hours

Step-by-step explanation:

6 divided by 3 is 2

Im pretty sure this is correct :)

8 0
3 years ago
Read 2 more answers
Under his cell phone plan, Bentley pays a flat cost of $64.50 per month and $4 per gigabyte. He wants to keep his bill at $78.90
Ira Lisetskai [31]

Answer:

3.6 gB

Step-by-step explanation:

You can think of this question in terms of the y = mx+b equation.

$78.90 is y because it is the total amount per month, $4 is m because it is the cost per gB, and $64.50 is b because it is the flat rate.

78.9 = 4x + 64.5

4x = 14.4

x = 3.6 gB of data (or 3 if it wants a whole number)

7 0
3 years ago
The hypotenuse of 45 45 90 triangle measures for cm what is the length of one leg of the triangle
Sedaia [141]
Sorry, are those the measurements? I know you have to use the Pythagorean Theorem, but I'd like to help in detail and go through the steps with you if you could please provide the measurements a bit more clearly. Thanks.
8 0
4 years ago
Read 2 more answers
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