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Rasek [7]
3 years ago
8

12/5x - 2x = 3/10 solve for x And show steps plz

Mathematics
1 answer:
ExtremeBDS [4]3 years ago
8 0

Answer:

x=3/4

Step-by-step explanation:

First, we must combine like terms and find the common denominator (which is 5):

12/5x-2x

12/5x-10/5x=2/5x

Then, we cross multiply

\frac{2x}{5} =\frac{3}{10}= 2x(10)=(3)(5)=20x=15

Then, we divide by 20 to get x:

x=15/20

and finally, we simplify the fraction

x=3/4

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Laura left Dunkin Donuts at 1 PM traveling 30 mph. Two hours later her friend Jen left the same Dunkin Donuts and started after
Wewaii [24]

Answer:

It took Jen 4 hours to catch up with Laura

Step-by-step explanation:

Gaining speed 45-30= 15 mph

Laura's head start 30×2=60 miles

Time for Jen to catch up 60÷15= 4 hours

In other words

30(t+2)= 45t

30t+60= 45t

60=45t-30t

60= 15t

t=4 hours

5 0
3 years ago
Find the volume of the cylinder in terms of pi.
Allushta [10]

Answer:

\large\boxed{V=81\pi\ in^3}

Step-by-step explanation:

The formula of a volume of a cylinder:

V=\pi r^2H

r - radius

H - height

We have r = 3in and H = 9in. Substitue:

V=\pi(3^2)(9)=\pi(9)(9)=81\pi\ in^3

5 0
3 years ago
Please I need a quick reply​
Rom4ik [11]

Answer:

B

Step-by-step explanation:

It sounds most likely to the right answer

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4 0
3 years ago
Read 2 more answers
CAN SOMEONE PLEASE HELP ME
Degger [83]

Answer:

38 degrees

Step-by-step explanation:

this is an isosceles triangle, meaning that the base angles are congruent.

the total triangle is equal to 180

so the equation would be: x=180 - (71+71)

evaluate:

x=180-142

x=38 degrees

Hope this helps :)

5 0
3 years ago
Greatest to least 0.386;0.3;0.683;0.836
levacccp [35]
<span>Here you go .. ordered as you wish ..
0.836
</span><span>0.683
</span><span>0.386
</span><span>0.3</span>
6 0
3 years ago
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