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slamgirl [31]
3 years ago
6

How do i solve for x with an equation that says 19 = x - 3

Mathematics
2 answers:
Anvisha [2.4K]3 years ago
5 0

Answer: x = 22

Step-by-step explanation: Since x is unknown, we want to isolate it and determine what it equals. We know that x - 3 gives us 19, but we don't want to know what x - 3 is, just x. So we can add three to both sides of the equation, to get our answer and keep it balanced. As a result, we get x = 22

fgiga [73]3 years ago
3 0

Answer:

x = 22

Step-by-step explanation:

19 = x - 3

Add 3 to each side

19 + 3 = x - 3 + 3

Simplify

22 = x

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Ronch [10]

Answer:

4/5

Step-by-step explanation:

because the ratio is 4:5

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One number is -35 the distance between the two numbers on the number line is 20
Mkey [24]
The answer is -15. Make sure to friend me and thank me
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Choose the correct ordered pair. <br><br> Help please
emmainna [20.7K]
We can solve this system of equations using substitution.

2y + 2x = 8

Solve for x.

2x = -2y + 8

Divide all terms by 2.

x = -y + 4

Take the equation x = -y + 4 and substitute it into the second system of equation.

2y - 4x = 2

2y - 4(-y + 4) = 2

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2y + 4y - 16 = 2

Combine like terms.

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y = 3


Now that you know the numerical value of y, substitute y with 3 in both equations to find x.

1) 2y + 2x = 8

2(3) + 2x = 8

6 + 2x = 8

2x = 2

x = 1

2) 2y - 4x = 2

2(3) - 4x = 2

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The value of x is 1, and the value of y is 3.

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8 0
4 years ago
NGC is a hot air balloon in the sky from her spot on the ground. The angle of elevation from Angie to the balloon is 40°. If she
Goshia [24]

Answer:

The distance from hot air balloon to the ground  AC=50.1457 ft.

Step-by-step explanation:

Labelled diagram of given scenario is shown below.

Given that,

An angle of elevation of Hot air balloon by Angie is 40°.

When she  stepped back 200 ft then angle of elevation was 10°.

Height of Angie is  5.5 ft.

To find: How far off the ground is a hot air balloon.

So, from figure

Height of Angie (BC) = 5.5ft

  In triangle ΔABD,

         ⇒                    tan {40\si {\degree}} = \frac{AB}{BD}

         ⇒                      AB = tan (40) \times BD          ....................(1)

Now, In triangle ΔABE

         ⇒                  tan (10)= \frac{AB}{200+BD}

         ⇒                 AB = tan(10)\times (200+BD)

Here, substituting the value AB from Equation (1) we get,

                        tan(10)\times (200+BD)= tan(40)\times BD

                      tan(10)\times 200+tan(10)\times BD= tan(40)\times BD

        ⇒         BD\times (tan(40)-tan(10))=tan(10)\times 20        

        ⇒                   BD\times 0.6628 = 35.2654

        ⇒                       BD = \frac{35.2654}{0.6628} =53.2067 ft        

Now, finding the value of AB from equation (1)

                                 AB= tan(40)\times 53.2067=0.8391\times 53.2067

                                 AB=44.6457 ft              

Therefore Length of AC= AB+BC = (44.6457 + 5.5) ft

                                  AC=50.1457 ft.

Hence,

The distance from hot air balloon to the ground  AC=50.1457 ft.                

6 0
3 years ago
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MatroZZZ [7]
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