3 years ago

-(t+2)=-3t+23 what value of t makes the equation true?

Mathematics

2 answers:

Fed [463]3 years ago

4 0

In order to know, we need to solve this.

-t-2=-3t+23

We add -2 on both sides to cancel it out.

-t-2=-3t+23

+2 +2

-t=-3t+25

Now we add -3t on both sides to cancel it out.

-t=-3t+25

+3t +3t

2t=25

Lastly, we divide 2 from t to both sides.

2t=25

/2 /2

t=12.5

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hope it helps

Damm [24]3 years ago

3 0

Answer:

T = 25/2

Step-by-step explanation:

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In triangle ABC, angle A is 75o and angle B is 20o. Select the triangle that is similar to triangle ABC.

Arturiano [62]

Answer:

A. $\triangle$ DEF where $\angle D = 75^{\circ}$ and $\angle E = 20^{\circ}$ .

Step-by-step explanation:

At first we must keep in mind that two triangles are similar when they have same angle configuration, that is, each pair of angles is congruent. If $\triangle$ ABC and $\triangle$ DEF, then $\angle A \equiv \angle D$ and $\angle B \equiv \angle E$ . Hence, $\angle D = 75^{\circ}$ and $\angle E = 20^{\circ}$ .