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Sindrei [870]
3 years ago
12

What is x in the eqaution -3x + 7 = 1

Mathematics
1 answer:
Lunna [17]3 years ago
8 0

Answer and Step-by-step explanation:

x=2

<u><em></em></u>

<u><em>→ Step 1: Subtract 7 from both sides :</em></u>

<u><em></em></u>-3x+7-7=1-7<u><em></em></u>

-3x=-6

<em><u>→ Step 2: Divide both sides by -3:</u></em>

<em><u /></em>\frac{-3x}{3}=\frac{-6}{3}<em><u /></em>

<em><u /></em>x=2<em><u /></em>

<em><u /></em>

<em><u>Answer :</u></em>

<em><u /></em>x=2<em><u /></em>

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Two dices are tossed. What is probability that you will see even numbers on both dices? Answer should be in reduced
zimovet [89]

Answer:

3/6

Step-by-step explanation:

Well 3 is half of 6 and if you were to turn that into a fraction it would either be 3/6 or 1/2.

8 0
3 years ago
Solve the equation show your work 3x equals 45​
natima [27]

Answer:

x = 15

Step-by-step explanation:

3x / 3 = 45 / 3 x = 15

7 0
3 years ago
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Can anyone help me ?
gtnhenbr [62]
The formula for the volume of a sphere is V=(4/3) (pi) r^3. if r is doubled then you get 2r as the radius and V=(4/3) (pi) * 8r^3 so the volume is eight times bigger than the original  r  value. if r is tripled the r =3r  and (3r)^3 so the volume is 27 times bigger. If r  is multiplied by  n  the radius is  nr  and (nr)^3 =n^3  r^3, Therefore, the volume is n^3 times bigger than the original.
7 0
3 years ago
two trains ,each 100 m long,moving in opposite directions ,cross each other in 8 seconds .if one is moving twice as fast as the
Feliz [49]

Answer:

60 km/hr

Step-by-step explanation:

100+100

_______         =3x

      8

3x= 200/8

x=200/24 mps

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8 0
4 years ago
Please Help!<br> The following is an isosceles trapezoid, find m &lt; J
ra1l [238]

Answer:

<em>The measure of angle J is 44°</em>

Step-by-step explanation:

<u>Isosceles Trapezoid</u>

The isosceles trapezoid has its non-parallel sides of the same length, thus the angles they form with their respective parallel sides are congruent.

It means: Angle J is congruent with angle K and angle M is congruent with angle L

The sum of angles in a trapezoid is 180*(4-2)=360°

Thus:

m\angle J+m\angle K+m \angle M+m\angle L = 360^\circ

7x+2+7x+2+25x-14+25x-14=360

Joining like terms:

64x-24=360

Adding 24:

64x=384

Dividing by 64:

x=6°

Thus:

m\angle J = 7*6+2=44^\circ

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The measure of angle J is 44°

3 0
3 years ago
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