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puteri [66]
3 years ago
12

X - 13 = 5x + 7 a) -5 b) 3 c) 6 d) 2

Mathematics
1 answer:
Alex3 years ago
6 0

x-13=5x+7\ \ \ \ |+13\\\\x=5x+20\ \ \ \ |-5x\\\\-4x=20\ \ \ \ |:(-4)\\\\x=-5\\\\Answer:\ a)\ -5

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A rental car company charges $53.75 per day to rent a car and $0.12 for every mile driven. Jaya wants to rent a car, knowing tha
Aliun [14]

Answer:

Jaya can afford to rent a car 4 days while staying within her budget.

Step-by-step explanation:

The inequality would have to indicate that the cost of renting a car has to be less than or equal to $230. The cost to rent a car is equal to the cost per day for the number of days plus the price per mile for the number of miles, which is:

53.75x+0.12y≤230, where:

x is the number of days the car is rented

y is the number of miles driven

As the statement says that she plans to drive 125 miles, you can replace "y" with this value and solve for x:

53.75x+0.12(125)≤230

53.75x+15≤230

53.75x≤230-15

53.75x≤215

x≤215/53.75

x≤4

According to this, the answer is that Jaya can afford to rent a car 4 days while staying within her budget.

5 0
3 years ago
Find the sum of 12a + 7b, −6a − 9, and 14a − 12b.
Ivan
The answer is:  [A]:  " 20a − 5b − 9 " .
______________________________________
Explanation:
_______________________________________________
  (12a <span>+ 7b) + (−6a − 9) + (14a − 12b) =
 
   12a </span><span>+ 7b  +  1(−6a − 9) + 1(14a − 12b) =
</span>    
   12a + 7b + (1*-6a) + (1*-9) + (1*14a) + (1* -12b) =
      
    12a + 7b − 6a − 9 + 14a − 12b =  ?

Combine the "like terms:

12a − 6a  + 14a = 20a ; 

7b − 12b =  - 5b ;

and then we have "-9" ;
_____________________________________________________
So, write as:   " 20a − 5b − 9 " ;  which is:  Answer choice:  [A].
______________________________________________________
8 0
3 years ago
Read 2 more answers
Using data from a study, we find a significant difference in the proportion of fruit flies surviving after 13 days between those
Alchen [17]

Answer:

uns 20 a 25%

Step-by-step explanation:

5 0
3 years ago
The weight P in pounds that a beam can safely carry is inversely proportional to the distance D in feet between the supports of
Andrew [12]
I got 5200 I'm not really sure but u can check
5 0
2 years ago
The circle graph shows how the annual budget for a company is divided by department. If the amount budgeted for Media and Sales
Tcecarenko [31]

Answer:

125,000,000

Step-by-step explanation:

In percentage,

Media + Sales = 3 + 17 = 20%

Let total budget be "t", so we can say:

20% of total budget is 25,000,000

"of" means "multiplication" and "is" means "equal to", so we can convert word equation to algebraic equation. Shown below:

20% * t = 25,000,000

20% = 20/100 = 0.2

Thus, the final equation is:

0.2t = 25,000,000

Solving for t, we get:

0.2t = 25,000,000\\t=\frac{25,000,000}{0.2}\\t=125,000,000

The total budget is (125 million) = 125,000,000

7 0
3 years ago
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