MATHEMATICS HIGH SCHOOL

Use any model you choose to find the quotient.

5 divided by 1/2

Answers

Answer 1
Answer: The answer is 10. I know because I did the (multiplication) division.
Answer 2
Answer: When dividing fractions, you're actually multiplying the first number by the reciprocal(the number you get when you switch the numerator and denominator) of the second number. Your original equation looks like this:

5÷1/2

The first thing you want to do is find the reciprocal of your second number. In 1/2, the numerator is one and the denominator is two. When you switch the numerator and denominator, you get this:

2/1

Now two is the numerator and one is the denominator. 
Next you will multiply 5 by 2/1 (2/1 simplifies to 2)

5*2=10

And there's your answer.

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Solve it by substitution method:- 5x - 6y=-9 and 3x + 4y= 25

Answers

\left\{\begin{array}{ccc}-5x-6y=-9&/\cdot2\n3x+4y=25&/\cdot3\end{array}\right\n+\left\{\begin{array}{ccc}-10x-12y=-18\n9x+12y=75\end{array}\right\n------------\n.\ \ \ \ \ \ \ -x=57\n.\ \ \ \ \ \ \ \ \ x=-57\n\n3\cdot(-57)+4y=25\n-171+4y=25\n4y=25+171\n4y=196\ \ \ \ /:4\ny=49\n\nSolution:x=-57;\ y=49.

Please Help! Brainliest going!

Answers

Answer: 7/4

Step-by-step explanation:

you would first add 5 to both sides

4x-5+5= -12+5

then simplify

4x= -7

divide 4 on both sides

4x/4= -7/4

and you get x=7/4

Answer:

The answer to your question is:

x = 2

y = 4

Step-by-step explanation:

     4x - 5y = -12       (1)

      -x + 5y = 18        (2)

Solve the system

                                               4x - 5y = -12

                                                 -x + 5y = 18

                                              3x   + 0 = 6

                                               3x = 6

                                                  x = 6 / 3

                                                  x = 2

                  Substitution

                                     4(2) - 5y = -12

                                      8 -5y = -12

                                          -5y = -12 - 8

                                          -5y = -20

                                           y = -20 / -5

                                           y = 4    

Julie's cell phone is 9 centimeters long. How many millimeters long is her cell phone?

Answers

julie's cell phone is 90 millimeters long. 
It is 90 millimeters. ^_^

The vertices of a right triangle are (6, 2), (–2, –4), and (–2, y). What is the value of y?



A.
–4


B.
–2


C.
2


D.
4

Answers

The answer should be C. 2
:P hope this helps you
The value of y is C. 2.

(6, 2), (-2, -4), (-2, 2)

Help pls asap I'm offering 100 point for a smart person to come and help

Answers

Answer:

..the large triangle is an enlargement of the small one in the ratio 23.4/18=1.3

x=11.4*1.3=14.82 inches

Step-by-step explanation:

What is the radius of a circle with an area of 32.1 square feet?

Answers

So we want to know the radius of the circle that has area A=32.1 ft^2. The formula for the area of a circle is A=pi*r^2. So to get the radius we must first divide both sides by pi and then take the square root. So, r^2=A/pi=10.2229 and the square root is= r= sqrt 10.2229 = 3.197 ft
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