3 years ago

Which of the following describes the correct process for solving the equation 3x+6=21

Mathematics

1 answer:

DochEvi [55]3 years ago

4 0

Answer: Subtract 6 from both sides. Then, one would get 3x=15. Divde by 3 on both sides. x=5.

Step-by-step explanation:

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3 1<br>12. IfA=<br>and f(x) = x² - 5x+7, find f(A).<br>, A<br>-12

LiRa [457]

Answer:

if the value of A is -12, then the answer to that is 211

Step-by-step explanation:

f(A)=(-12)^2-5(-12)+7=211

5 0

3 years ago

Solve the system of equations. If the system has no solution, say that it is inconsistent. Graph the lines of the system.

8090 [49]

Answer:

c. The system is inconsistent

Step-by-step explanation:

Multiplying the first equation by 2 gives ...

4x +2y = 4

Compare this to the second equation:

4x +2y = -5

There are no values of x and y that can satisfy both equations. The system is inconsistent.

_____

The equations describe lines that are parallel and do not intersect.

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3 years ago

The Reeds are moving across the country. Mr. Reed leaves 4.5 hours before Mrs. Reed. If he averages 40mph and she averages 60mph

Diano4ka-milaya [45]

Answer:

Mr. Reed DATA:

rate = 40 mph ; time = x hrs ; distance = 40x miles

-----

Mrs. Reed DATA:

rate = 60 mph ; time = x - 3.5 hrs ; distance = 60x - 210 miles

Equation:

40x = 60x -210

-20x = -210

x = 10.5 hrs

x-3.5 = 7 hrs (Mr. Reed's time)

Step-by-step explanation:

can you help me please? brainly.com/question/22819277

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3 years ago

Help plz need today will help boost you

evablogger [386]

Answer:

for question 9, the answer is c

because the numerator and denominator are of the same

I would appreciate if my answer is chosen as a brainliest answer

5 0

3 years ago

I need help...I need to find the intercept form and the zero product property to solve and the x intercepts

Leni [432]

0=x^2-8x-9
0=(x+ 1)(x- 9)
X=-1 and 9

8 0

3 years ago