Question about Texas Instruments TI-30XA Calculator

I want to learn how to plug it in into the calculator. I wanto to learn how to use it.

If I understood correctly your description, the result is as follows on the screen grab.

Hope it helps.

Hope it helps.

Nov 07, 2016 | Calculators

To solve for x we have to isolate x on one side and then divide by the coefficient to get x by itself.

Taking an example, 3x + 6 = 12

First step - subtract 6 from both sides.

3x + 6 - 6 = 12 - 6

Simplifying, we get

3x = 6

To get x by itself, we divide both sides by the coefficient in front of the variable. In this case, we divide both sides by 3.

3x / 3 = 6 / 3

x = 2

Doing the generic formula, ax+b=c

ax + b - b = c - b

ax = c - b

x = (c-b)/a

Good luck.

Paul

Taking an example, 3x + 6 = 12

First step - subtract 6 from both sides.

3x + 6 - 6 = 12 - 6

Simplifying, we get

3x = 6

To get x by itself, we divide both sides by the coefficient in front of the variable. In this case, we divide both sides by 3.

3x / 3 = 6 / 3

x = 2

Doing the generic formula, ax+b=c

ax + b - b = c - b

ax = c - b

x = (c-b)/a

Good luck.

Paul

May 02, 2016 | Calculators

conversion tables on Google

Nov 03, 2015 | Calculators

1) 2x + 5y = 7

2) 3x + 6y = 3

I'm going to use the method of elimination to solve for x and y.

Multiply 1) by 3 and 2) by 2 to allow the x's to be eliminated.

1) 6x + 15y = 21

2) 6x + 12y = 6

Now subtract line 2 from line 1.

0x + 3y = 15

---- ----

3 3 divide both sides by 3 to get y by itself.

y =5.

Substitute into 1) to calculate x.

2x + 5(5) = 7

2x + 25 = 7

2x + 25 -25 = 7 - 25

2x = -18

---- ----- divide both sides by 2 to get x by itself

2 2

x = -9

Check by plugging in answer into the other equation, in this case 2)

3 (-9) + 6(5) = 3

-27 + 30 = 3

3 = 3

We did it correctly and checked to prove that we did it right.

Good luck.

Paul

2) 3x + 6y = 3

I'm going to use the method of elimination to solve for x and y.

Multiply 1) by 3 and 2) by 2 to allow the x's to be eliminated.

1) 6x + 15y = 21

2) 6x + 12y = 6

Now subtract line 2 from line 1.

0x + 3y = 15

---- ----

3 3 divide both sides by 3 to get y by itself.

y =5.

Substitute into 1) to calculate x.

2x + 5(5) = 7

2x + 25 = 7

2x + 25 -25 = 7 - 25

2x = -18

---- ----- divide both sides by 2 to get x by itself

2 2

x = -9

Check by plugging in answer into the other equation, in this case 2)

3 (-9) + 6(5) = 3

-27 + 30 = 3

3 = 3

We did it correctly and checked to prove that we did it right.

Good luck.

Paul

Mar 12, 2015 | Calculators

Add the numbers together, then divide by the number of numbers.

For example, to figure the mean of 3, 4, and 5, add 3, 4, and 5 to get 12. Divide by the 3 and get 4. Thus the mean of 3, 4, and 5 is 4.

For example, to figure the mean of 3, 4, and 5, add 3, 4, and 5 to get 12. Divide by the 3 and get 4. Thus the mean of 3, 4, and 5 is 4.

May 06, 2014 | Calculators

Use the rules for exponents and you will calculate it by hand

(1*10^-14)/(5*10^-12)=(1/5)*10^(-14+12)= 0.2*10^-2=2*10-3

To enter powers of 10 use the short-cut key [EE]

For example to enter 6.02*10^23 type in** 6.02* [EE] 23**. When you use the EE key, the base (10) should not appear.

(1*10^-14)/(5*10^-12)=(1/5)*10^(-14+12)= 0.2*10^-2=2*10-3

To enter powers of 10 use the short-cut key [EE]

For example to enter 6.02*10^23 type in

Apr 06, 2014 | Texas Instruments TI-30XA Calculator

Sorry but you are using the word EQUATION incorrectly. All you have is two numbers you want to divide one by the other.

Enter the numerator 1EE (-) 14, press the division key / then enter the 5 EE (-) 12. Press the = sign.

Note: to enter the negative sign in the exponents, use the change sign key marked**(-), (+/-) or [+/-] **. Do not use the regular MINUS sign.

When you use the EE key, you must not enter the 10. It is understood because EE is a shortcut for***10^**.

Enter the numerator 1EE (-) 14, press the division key / then enter the 5 EE (-) 12. Press the = sign.

Note: to enter the negative sign in the exponents, use the change sign key marked

When you use the EE key, you must not enter the 10. It is understood because EE is a shortcut for

Apr 06, 2014 | Texas Instruments TI-30XA Calculator

Somehow you're calculating 12!/(5!/7!).

Press 1 2 MATH left-arrow 4 / 5 MATH left-arrow 4 / 7 MATH left-arrow 4 ENTER to calculate the desired value. Alternatively, you can press 1 2 MATH left-arrow 3 5 ENTER or 1 2 MATH left-arrow 3 7 ENTER to calculate the same thing.

Press 1 2 MATH left-arrow 4 / 5 MATH left-arrow 4 / 7 MATH left-arrow 4 ENTER to calculate the desired value. Alternatively, you can press 1 2 MATH left-arrow 3 5 ENTER or 1 2 MATH left-arrow 3 7 ENTER to calculate the same thing.

Aug 10, 2011 | Texas Instruments TI-83 Plus Calculator

2nd [CLR TVM] (clear old data)

6 2 5 PV (present value)

8 I/Y (annual interest)

1 2 8 4 +/- FV (future value)

CPT N / 1 2 = (compute number of months, divide by 12 to get number of years)

6 2 5 PV (present value)

8 I/Y (annual interest)

1 2 8 4 +/- FV (future value)

CPT N / 1 2 = (compute number of months, divide by 12 to get number of years)

Oct 15, 2010 | Texas Instruments BA-II Plus Calculator

well I`am having a promblem with fractins and its hard for me to divid a fration

Jan 25, 2008 | Texas Instruments TI-30XA Calculator

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