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AnnZ [28]
3 years ago
8

7 (x + 3) - 3(4x + 9) = 14

Mathematics
2 answers:
Paul [167]3 years ago
5 0

Answer:

-4

Step-by-step explanation:

vladimir1956 [14]3 years ago
5 0

Answer:

-4

Step-by-step explanation:

Distribute the 7 and -3 inside the parentheses

7x + 3 - 12x -2 7

Combine like terms

-5x - 6 = 14

Isolate x by adding 6 to both sides

-5x = 20

Divide by -5

x = -4

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Simon has a scale model of the Concorde airplane. The actual length of the Concorde is approximately 200 feet. If the ratio of t
Verizon [17]
The answer is:  "40 cm " .
_________________________________________________________
<u>Note</u>:
_________________________________________________________

\frac{200 ft }{ (x) cm} = \frac{5}{1}  ;

Solve for "x" (in "cm" ) ; 


→  5x = 200 * 1 ; 

→  5x = 200 ; 

Divide each side of the equation by "5" ; 
   to isolate "x" on one side of the equation; & to solve for "x" ; 

→  5x / 5 = 200 / 5 ; 

to get:

→  x = 40 .
___________________________________________________________
The answer is:  " 40 cm " .
___________________________________________________________
6 0
3 years ago
Read 2 more answers
Help? i'll mark brainliest if correct
Strike441 [17]

Answer:

36,686

Step-by-step explanation:

5.88 x 12 over 10 = 240

240 x 26 = 36,686

5 0
3 years ago
What is the Z-score for Paula if she got 1400 on the SAT, the mean was 1100 and the standard deviation was 275? step by step how
Setler [38]

mu = 1100 = population mean

sigma = 275 = population standard deviation

x = 1400 = raw score

z = z score

z = (x-mu)/sigma

z = (1400-1100)/(275)

z = 300/275

z = 1.0909090909091 approximately

z = 1.09

Convention is to round to two decimal places so that you can use a Z table to look up the area under the curve (which helps determine probability).

The positive z score is due to Paula's raw score being above the mean.

7 0
2 years ago
Here’s the question!!!
ludmilkaskok [199]

Answer:

The answer is 3/4 because 2/4 + 1/4 = 3/4.

7 0
3 years ago
The cost of gasoline varies directly with the number of gallons bought. If
Oksana_A [137]

Answer:63 dollars 16.80÷ 4 = 4.20 4.20 × 15 = 63

Step-by-step explanation:

7 0
3 years ago
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