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ira [324]
2 years ago
12

Which choice is the solution to the inequality below?

Mathematics
1 answer:
Temka [501]2 years ago
8 0
It’s called me a few minutes before the meeting so I’m not working for you and
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Find the solution to the following system using substitution or elimination: y = 3x + 2 y = -2x - 8 O A. (-5,-) OB. (-2,-4) O C.
mr Goodwill [35]

Answer:

B. (-2,-4)

Explanation

Given equations:

   y = 3x + 2

   y = -2x - 8

Solving both equations will yield the values of x and y;

Solution:

   y = 3x + 2    ----- (i)

   y = -2x - 8   ------ (ii)

Using substitution method, input equation i, into ii

    3x + 2 = -2x - 8

Collect like terms and solve;

     3x + 2x = -8 -2

         5x  = -10

            x  = -2

Then put x = -2 into i, to find y

      y = (-2 x 3) + 2

       y = -6 + 2 = -4

So, the solution of the equation is B. (-2,-4)

6 0
2 years ago
The distance Max's bike moves is directly proportional to how many rotations his bike's crank shaft has
Gemiola [76]

Answer:

187.5 feet

Step-by-step explanation:

we know that

Max's bike moves 25 feet after two rotations

so

using proportion

Find out how many feet will the bike move after 15 rotations

Let

x ----> the distance in feet

\frac{25}{2}\frac{ft}{rev}=\frac{x}{15}\frac{ft}{rev}\\\\x=15(25)/2\\\\x=187.5\ ft

7 0
3 years ago
Read 2 more answers
At the moment a certain medicine is injected, it’s concentration in the bloodstream is 120 milligrams per liter. From that momen
PSYCHO15rus [73]

Answer:

C(t)=120(0.7)^t

Step-by-step explanation:

4 0
3 years ago
Justin is redoing his bathroom floor with tiles measuring 5in. By 14 in. The floor has an area of 8,500 square inches. What is t
ch4aika [34]
<h3>Answer:</h3>

He will need at least 122 tiles

<h3>Step-by-step explanation:</h3>

Get the area of the tiles

5*14= 70 square inches per tile

Divide the floor area by the tile area

8,500/70

121.428571

Round up

122

4 0
3 years ago
PLS HELP BIG EXAM PLS I WILL GIVE A LOT PLSS HELP
Sladkaya [172]

Answer: 11x1.5=16.5 if im correct

Step-by-step explanation:B)

3 0
2 years ago
Read 2 more answers
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