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3 years ago

2x -8 = 10 Ayudenme xdd

2 answers:

7 0

The correct answer is 9.

2x - 8 = 10
+8 +8
__________
2x 18
__ = _____
2x 2

x = 9

First you add 8 to -8 and 10. Then you decide 2x and 18 by 2. that leaves you with x = 9. or just 9. de nada !!

alukav5142 [94]3 years ago

4 0

Answer: X=9

Step-by-step explanation: Correct

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3241004551 [841]

1. a= 60 (vertically opposite angles)

b= 360-(60+60)=240/2= 120 (angles at a point)

c= 120 (vertically opposite angles with b)

2. c= 90-40= 50 (vertically opposite angles)

b=a=360-90-90=180/2=90 (angles at a point)

3. a= 180-52-51= 77 (angles on a straight line)

b=52 (angles at a point)

d=51 (angles at a point)

c=77 (angles at a point)

4. a= 60 (vertically opposite angles)

b= 360-(60+60)=240/2= 120 (angles at a point)

c= 120 (vertically opposite angles with b)

e=65

d=f= 360-65-65=230/2=115

h=55

i=g=360-55-55=250/2=125

5. b=163

a=90

e=70

d=360-70-70=220/2=110

c=360-163-163=34/2=17

Hope this helps!

4 0

3 years ago

EMERGENCY!! 25 POINTS!! Find 40th term of 5n - 3

Oduvanchick [21]

Answer:

197

Step-by-step explanation:

the answers 197 because if an=5n-3 then a40= 197

6 0

2 years ago

Which of the following is equivalent to 3_-900 ?

pashok25 [27]

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4 0

3 years ago

18z-13=-4 solve for z

Murljashka [212]

Answer: 20 ;)

Step-by-step explanation:

4 0

3 years ago

What were Malcolm's and Ravi's maximum speeds?

Lisa [10]

Answer:

Malcom's maximum speed = 200 km/h

Ravi's maximum speed = 320 km/h

Step-by-step explanation:

Let m = Malcom's maximum speed

Let r = Ravi's maximum speed

Average of their maximum speed would be represented as $\frac{m + r}{2} = 260$

$m + r = 520$ .

Make m the subject of the formula by subtracting r from both sides:

$m = 520 - r$ . Let this be equation 1.

Given that Malcom's speed (m), when doubled is 80 km/h more than that of Ravi (r). This can be expressed as: $2m = r + 80$ . This is equation 2.

Plug in (520 - r) into equation 2 to replace m:

$2(520 - r) = r + 80$

$1040 - 2r = r + 80$

Solve for r. Subtract 1040 from both sides:

$1040 - 2r - 1040 = r + 80 - 1040$

$- 2r = r - 960$

Subtract r from both sides

$- 2r - r = r - 960 - r$

$- 3r = - 960$

Divide both sides by -3

$\frac{-3r}{-3} = \frac{-960}{-3}$

$r = 320$

To find m, plug in the value of r into equation 1.

$m = 520 - r$ . =>Equation 1

$m = 520 - 320$

$m = 200$ .

Malcom's maximum speed = m = 200 km/h

Ravi's maximum speed = r = 320 km/h

7 0

3 years ago