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kirill115 [55]
3 years ago
11

What is an eqivalent expression for 3 - 5​

Mathematics
1 answer:
photoshop1234 [79]3 years ago
6 0

Answer:

6-4

Step-by-step explanation:

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A restaurant has a total of 30 tables which are of two
Anna007 [38]

Answer:

Total number of tables of first type       = 23.

Total number of tables of second type = 7

Step-by-step explanation:

It is given that there are 30 tables in total and there are two types of tables.

Let's call the two seat tables, the first type as x and the second type as y.

∴                                             x + y = 30                        ......(1)

Also a total number of 81 people are seated. Therefore, 2x number of people would be seated on the the first type and 5y on the second type. Hence the equation becomes:

                                            2x + 5y = 81                        .....(2)

To solve (1) & (2) Multiply (1) by 2 and subtract, we get:

                                                      y = 7

Substituting y = 7 in (1), we get x = 23.

∴ The number of tables of first kind         = 23

  The number of tables of second kind   = 7

3 0
3 years ago
Volume of a cube<br> 3.8 ft<br> 1.1 ft
balu736 [363]
Where’s the photo? But I need to answer with a photo 3.8 ft and 1.1 ft equals 4.9 ft
7 0
3 years ago
I need some help graphing this
Romashka [77]

Answer:

1.512445e+216

Step-by-step explanation:

3 0
3 years ago
Help fast! What is the area ? To thiiiissss
lesya692 [45]
28(7) + 30(25) = 946 square inches

hope this helps!!
7 0
3 years ago
To evaluate 43/2 find A) the square of 4 and then take the cube root. B) the cube of 4 and then take the square root. C) the squ
tatiyna

Answer:

  B) the cube of 4 and then take the square root

Step-by-step explanation:

43/2 = 21.5

___

The answer choices suggest you want ...

  4^(3/2) . . . . . . . appropriate math symbols are very helpful

This can be evaluated several ways:

  4^{\frac{3}{2}}=\sqrt{4^3}=(\sqrt{4})^3=10^{\frac{3}{2}\log{4}}\\\\=8

_____

Since the 3 is in the numerator of the fraction, it represents a cube, not a cube root. Any of the answer choices suggesting cube root is involved are incorrect. (Eliminating those leaves only the correct answer choice.)

4 0
3 years ago
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