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Alenkinab [10]
3 years ago
9

Solve for a : 2a – 5 = a + 3

Mathematics
2 answers:
Olenka [21]3 years ago
8 0

Answer:

a = 8

Step-by-step explanation:

  • 2a - 5 = a + 3
  • a - 5 = 3
  • a = 8
mario62 [17]3 years ago
6 0

Answer:

Step-by-step explanation:

We move the a on the right side and the 5 on the left side to get a = 8

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What is the third term when -2h4+5h2-3-2h-8h3 is arranged in descending order
Oduvanchick [21]
The third term would be 5h2 because the descending order would be
-2h4 - 8h3 + 5h2 - 2h - 3
8 0
3 years ago
A rectangular field is to be enclosed by a fence and divided
Phantasy [73]

Answer:

80000 square meters

Step-by-step explanation:

perimeter + dividing fence = 800

let a = length

let b = width

let c = length of dividing fence

perimeter = 2*a + 2*b

let's say...

c is the same as the length

2a + 2b + c = 800

2a + 2b + a = 800

3a + 2b = 800

area = length*width

area = a*b

area / b = a

3*(area/b) + 2b = 800

3*(area/b) = 800 - 2b

area/b = (800 - 2b)

area = (800 - 2b)*b

To make the area large, we make the right hand side large.

800b - 2b^2

If you put in terms of x, y it looks like a downward opening parabola, so the max area is at the vertex. Half way between the roots.

y = -2x^2 + 800x

y = -x^2 + 400x

0 = x*(-x + 400)

roots are x= 0 and x = 400

vertex is at x, aka b = 200

area at b=200 is (800 - 400)*200 = 80000

and a is area/b... 80000/400 = 200

5 0
3 years ago
What equals 62? and what factors equal 62
nexus9112 [7]
The only factors that equal 62 are

62 • 1 = 62
and
31 • 2 = 62.

Hope this helps!
3 0
4 years ago
Read 2 more answers
Help me plz thx so much
rewona [7]
She paid $30 bucks total.
8 0
3 years ago
Combining like terms: 6(7-3y)+6(y+1)<br>I NEED HELP ILL GIVE U ALL MY POINTS!!<br>​
lina2011 [118]

Answer:

-12y + 48 !

Step-by-step explanation:

hope this helps :))

6 0
3 years ago
Read 2 more answers
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