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goldfiish [28.3K]
3 years ago
15

Slove for the variable 2a-5=5a+23

Mathematics
1 answer:
Lyrx [107]3 years ago
3 0

Answer:

a = 9 \frac{1}{3}

Step-by-step explanation:

2a - 5 = 5a + 23 \\ 2a - 5a = 23 + 5 \\  - 3a = 28 \\  \frac{ - 3a}{ - 3}  =  \frac{28}{ - 3}  \\ a = 9 \frac{1}{3}

You might be interested in
5c-20<15c+10 solve inequality
Vinvika [58]
Combine all like terms and use inequality as = sign

5c-20 <15c + 10
Add 20 to each side

5c< 15c + 30

Subtract 15c from each side

-10c < 30

Divide each side by -10

c < -3

7 0
3 years ago
What do I multiple to -1 1/7 to get 1
Setler79 [48]

Answer:

-7/8

Step-by-step explanation:

-1 1/7 is in improper fraction form -8/7

-8/7x = 1

x = -7/8

7 0
3 years ago
The radius of a circle is 20 cm. Find its area in terms of π π.
natulia [17]

Answer:

A = 400\pi cm^2

Step-by-step explanation:

Area of a circle is:

A = πr²

We are given a radius of 20 cm.

A = πr²

A = π(20)²

A = π400

<em>A = 400πcm²</em>

Hope this helps.

4 0
3 years ago
14. Two parallel lines l and m are intersected by a transversal t. If the interior angles on same side of transversal are (2x−8)
nlexa [21]

Answer:

70° and 110°

Step-by-step explanation:

It is given that, two parallel lines l and m are intersected by a transversal t.

The interior angles on same side of transversal are (2x−8)° and (3x−7)°.

We need to find the measure of these angles.

We know that, the sum of interior angles of the same side of the  transversal is equal to 180°. So,

(2x−8)° + (3x−7)° = 180°

⇒ 5x-15=180°

⇒5x=180°+15

⇒5x=195

⇒x=39

Put x = 39 in (2x−8)°,

(2x−8)° = (2(39)-8)°

=70°

Again put x = 39 in (3x−7)°,

(3x−7)° = (3(39)-7)°

=110°

So, the measure of these angles are 70° and 110°.

8 0
4 years ago
Helpp meee pleaseeee​
ludmilkaskok [199]

Answer:

I think its b:/ srry if I'm wrong

5 0
3 years ago
Read 2 more answers
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