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Vinil7 [7]
3 years ago
11

7a-4b=2b-5a solve for a

Mathematics
1 answer:
uysha [10]3 years ago
5 0

Step-by-step explanation:

7a - 4b = 2b - 5a

7a + 5a = 2b + 4b

12a = 6b

a = 6b/12

a = b/2

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Please help with math ​
irakobra [83]

Answer:

5 and 6

Step-by-step explanation:

You have to find two numbers (in the chart) that have a difference of 3/8.

This is just one possiblity, there are other correct answers.

There is size 5 and 6. 9 and 4/8-9 and 1/8=3/8.

8 0
3 years ago
Question is show below.
WITCHER [35]

(1/4ab)^-2

Remove negative exponent by rewritten the equation as (4ab)^2

AUse Product rule to get:

4^2a^2b^2

Now raise 4 to the second power to get:

16a^2b^2


The last answer is correct.

7 0
3 years ago
Numbers to the nearest ten <br> 48393<br> 1549<br> 37,519<br> 65,810<br> 2175
katen-ka-za [31]

Answer:

48390,"37,520","65,810",2170 or 2180 (both will work)

4 0
3 years ago
Read 2 more answers
D+(-9)=-5<br> i need to solve for d. thank u
goldfiish [28.3K]

Answer:

4

Step-by-step explanation:

d - 9 = -5

Add 9 to -5, and you will get 4.

4 - 9 = -5

8 0
3 years ago
Read 2 more answers
Two trains leave Stations 396 miles apart at the same time and travel towards each other. One train travels at 95 mph while othe
PolarNik [594]

It will take 2.2 hours for the trains to meet.

Step-by-step explanation:

Given,

Distance between two trains = 396 miles

Speed of one train = 95 mph

Speed of other train = 85 mph

Combined speed of trains = 95+85 = 180 mph

Distance = Speed * Time

Time = \frac{Distance}{Speed}

Time = \frac{396}{180}

Time = 2.2 hours

It will take 2.2 hours for the trains to meet.

Keywords: speed, distance

Learn more about distance at:

  • brainly.com/question/13219835
  • brainly.com/question/1836777

#LearnwithBrainly

8 0
4 years ago
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