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3 years ago

What is the answer to -4x +6=26

Mathematics

1 answer:

adelina 88 [10]3 years ago

5 0

If you're solving for x:

-4x + 6 = 26
- 6 - 6
-4x = 20
/-4 /-4
x = -5

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Which of the following statements demonstrates unit rate?

Ber [7]

The answer would be B.

Unit rate is something per time unit or other unit.

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2 years ago

Simplify: -7/9-(-5/12)+1/3.

alexandr1967 [171]

Step-by-step explanation:

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2 years ago

Read 2 more answers

Jim has 5 computer science books and 3 math books. he has room to arrange four of them on a shelf. he wants at least two compute

zysi [14]

Answer: There are 60 different ways that he can arrange the books.

Step-by-step explanation:

Since we have given that

Number of computer science books = 5

Number of math books = 3

Number of books selected = 4

Atleast Number of computer science = 2

Atleast number of math book = 1

According to question, he wants at least two computer science books and at least one math book, and he wants to keep the computer science books and the math books together.

So, Number of different ways that he can arrange the books is given by

$^5C_2\times ^3C_2+^5C_3\times ^3C_1\\\\=30+30\\\\=60$

Hence, there are 60 different ways that he can arrange the books.

8 0

3 years ago

Find the solution set for the system of equations.<br> 9x + 5y = 28<br> 5x + 9y = 56

Jobisdone [24]

First step find a common multiple, e.g. 45 and subtract
9x + 5y = 28 * 5
5x + 9y = 56 * 9

45x + 25y = 140
-(45x + 81y = 504)
-56y = -364
56y = 364
y = 6.5

Substitute into any equation
9x + 5(6.5) = 28
9x + 32.5 = 28
9x = -4.5
x = -0.5

x = -0.5 , y = 6.5

6 0

3 years ago

List the element of following set?

Mrac [35]

Answer:

Below.

Step-by-step explanation:

a) A = {1, 2, 5, 10}

b) B = {1, 3, 5, 15}

c) A∩B = {1, 5} ( elements common to A and B).

d) A∪B = {1, 2, 3, 5, 10, 15} (total elements in A and B).

7 0

2 years ago