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Zepler [3.9K]
3 years ago
12

What is an equivalent to the expression (a+b)(2+y)

Mathematics
1 answer:
Rudik [331]3 years ago
6 0

Answer:

a+b*2+y

Step-by-step explanation:

2 things next to each other such as a number and a varaibile of this #(#)

means multiplication.

So,

(a+b)(2+y) = a+b*2+y

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Is it possible for two numbers to have a difference of 8 and a sum of 1?
topjm [15]

Answer: yes , it is possible

Step-by-step explanation:

Let the first number be x and the second number be y .Then , the sum of the two numbers will be x + y , and their difference will be x - y.

Combining the two , we have :

x + y = 1 ............................... equation 1

x - y = 8 ................................. equation 2

solving the system of linear equation by substitution method. From equation 1 , make x the subject of the formula ,

x = 1 - y ...................... equation 3

Substitute equation 3 into equation 2 ,

1 - y - y = 8

1 - 2y = 8

add 2y to both sides

1 = 8 + 2y

subtract 8 from both sides

1 - 8 = 2y

- 7 = 2y

divide through by 2

y = \frac{-7}{2}

y = - 3.5

substitute y = -3.5 into equation 3 to find the value of x , we have

x = 1 - y

x = 1 - ( - 3.5 )

x = 1 + 3.5

x = 4.5

Let us check :

x + y will be

4.5 + (-3.5) = 1

Also ,

x - y will be

4.5 - (-3.5)

⇒ 4.5 + 3.5 = 8

7 0
3 years ago
Harley and Natalie are each given 2 1/3 kg of clay Harley makes as many balls of clay as he can from his clay. Each ball weighs
STALIN [3.7K]

Answer:

Her clay balls weight 0 pound because she doesn't have balls

3 0
2 years ago
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8>3+t/4 what is the answer​
salantis [7]

Answer:

  1. Subtract 3 from 8.... 5 > t/4
  2. Multiply both sides by 4... 5/4 > t
  3. The answer is t < 5/4

5 0
3 years ago
Fundamental Counting Principle (L1)
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9 and 14 are the answers
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F(x) = 4x - 1 when x = 1
ohaa [14]

Answer:

Step-by-step explanation:

f(x)=4x-1      x=1

f(x)=4(1)-1

f(x)=4-1

f(x)=3

3 0
3 years ago
Read 2 more answers
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