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makkiz [27]
3 years ago
7

Solve for a . 5a − 2 = 23 a =

Mathematics
2 answers:
True [87]3 years ago
8 0

Answer:

a=5

Step-by-step explanation:

5a - 2 = 23

5a = 23 + 2

5a = 25

\frac{5a}{5}  =  \frac{25}{5}

a =  \frac{25}{5}

a = 5

Anestetic [448]3 years ago
3 0
5a - 2 = 23
5a +2 = +2
5a = 25
5a/5 = 25/5
a = 5
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If a length of a square is 3.2 cm square what is the perimeter and area​
stiv31 [10]
Since all of a squares sides are the same length, we can use 3.2 cm in the following equations:

P= 2L + 2W and A= L x W

P= 2(3.2) + 2(3.2) which is the same as P= 4(3.2)

P= 12.8 cm

A= 3.2 x 3.2
A= 10.24 cm^2
3 0
2 years ago
Find the sum of 3.0478 and 4.92 using the correct number of significant digits.
Nat2105 [25]

The sum of 3.0478 and 4.92 is 7.9678, which have 5 significant digits.

<u>Step-by-step explanation:</u>

We have , Number1 = 3.0478 and Number2  =4.92 . The significant digits of a number are digits that includes all digits except:

  • All leading zeros. For example, "013" has two significant figures: 1 and 3;
  • Trailing zeros when they are merely placeholders to indicate the scale of the number and  ,
  • Spurious digits introduced, for example, by calculations carried out to greater precision than that of the original data, or measurements reported to a greater precision than the equipment supports.

Here Number1 = 3.0478 and with significant digit rules Number2 = 4.9200 . Now, Sum of both numbers = Number1 + Number2

⇒Sum of both numbers = 3.0478 + 4.9200

⇒Sum of both numbers = 7.9678

∴ The sum of 3.0478 and 4.92 is 7.9678, which have 5 significant digits.

8 0
3 years ago
Can someone please help me solve this -6(r+3g-t)
Dmitry [639]

Answer:

-6r-18g+6t

Step-by-step explanation:

4 0
4 years ago
Read 2 more answers
I solve kinda a bit but its hard (Algebra 2)
melisa1 [442]

Answer:

x=9

Step-by-step explanation:

The goal is to combine our knowledge of geometry area and algebra skills to solve this problems.

We know area of rectangle is

l \times w

where l is the length and w is the width. We know that one side is 3 less than the other side. We can use L or W but let use L. Let x replace L

One side is x, while the other side is

x - 3

Both multiply to 54.

x(x - 3) = 54

{x}^{2}  - 3x = 54

{x}^{2}  - 3x  - 54 = 0

(x - 9)(x + 6)

x = 9

or

x =  - 6

Distance. is positive so x=9

8 0
3 years ago
Pls help me I think it might be 14 but I’m not sure
mash [69]
Yes the answer is 14 good job
8 0
3 years ago
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