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elixir [45]
4 years ago
7

2. Which expression is equivalent to 20+64

Mathematics
1 answer:
MaRussiya [10]4 years ago
4 0

Answer:

20+64=84

40+44=84

74+10=84

30+54=84

Step-by-step explanation:

(pls mark brainliest if u can)

:D

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2/3 (5 x 4) ÷ 3 + 6/7 =
Andrei [34K]
You do the multiplication in the brackets first 

so 2/3 (20) / 3 + 6/7 

then multiply 20 by 2/3 to get 40/3 

then divide 40/3 by 3 to get 40/9 

and finally add 40/9 to 6/7 by finding the least common denominator
8 0
4 years ago
2. Solve for x: 2(x - 5) = x + 3(x + 2)​
MrMuchimi

Answer:

x=-8

Step-by-step explanation:

5 0
2 years ago
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Mr. Newton planned a visit to the coast. He stopped at a beach in
PolarNik [594]

Answer:

6 weeks

Step-by-step explanation:

First you add 23+19 which is 42

Then you divide 42 by the number of days in a week (7)

42/7=6

8 0
4 years ago
In how many ways can the 19 members of a chess club fill the offices of​ King, Knight,​ Bishop, and​ Rook?
goldfiish [28.3K]

Solution:

This problem is a permutation because the order matters here. This means that choosing A as King, B as Knight, C as Bishop and D as Rook results in a different arrangement from B as King, A as Knight, D as Bishop and C as Rook. We would count them both because in the first case A is King, but in the second case A is Knight.

Therefore, the possible number of ways are given below:

19P4=\frac{19!}{(19-4)!} =\frac{19 \times 18 \times 17 \times 16 \times 15!}{15!} =19 \times 18 \times 17 \times 16 =93024

Hence there will be 93024 ways 19 members of a chess club fill the offices of King, Knight, Bishop, and Rook.

3 0
3 years ago
Find the value of x.
KengaRu [80]

Answer:

100

Step-by-step explanation:

The two angles form a straight line which is 180 degrees

5+x  +75 = 180

Combine like terms

x+80 = 180

Subtract 80 from each side

x +80-80=180-80

x = 100

7 0
3 years ago
Read 2 more answers
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