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blsea [12.9K]
3 years ago
13

Pick any number and add 5 to it. Find the sum of the new number and the original number. Add 5 to the sum. Divide the new sum by

2 and subtract the original number from the quotient. What is the final number?
Mathematics
1 answer:
Oksana_A [137]3 years ago
3 0

Answer: The final number is 5

Step-by-step explanation:

Picked number: 10

STEP are all according to what you stated

10+5=15 (first sentence)

15+10=25 (second sentence)

25+5=30 (third sentence)

30÷2-10=5 (fourth sentence)

The final number is 5.

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4) A rectangle as a length which is twice its width.
Yuki888 [10]

Answer:

D.

Step-by-step explanation:

2 is it's length while in the perinthesis is x for its length plus the width which is doubled, explained by the x.

6 0
2 years ago
Solve the system of linear equations using Elimination
kakasveta [241]
Alright so after solving it the answer would be x=2 and y= 6
6 0
3 years ago
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$12 for 8 pounds of peanuts (blank) per pound
rjkz [21]
To solve, divide the dollars by the pounds of peanuts to find the cost per pound:

12/8 =1.5 

So, it cost $1.50 per pound of peanuts.

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5 0
3 years ago
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What is one of the solutions to the following system of equations?
Amanda [17]

Answer:

(8,-1)

Step-by-step explanation:

Given :   x^{2} +y^{2} =65

               x+y=7

To Find: solution of given system of equations.

Solution:

Equation a :   x^{2} +y^{2} =65

Equation b :  x+y=7

Substitute the value of y from equation b in equation a

y from equation b : y = 7-x

Now substitute value of y in equation a

Thus equation a becomes:

 x^{2} +(7-x)^{2} =65

x^{2} +49+x^{2}-14x =65

2x^{2} -14x =65-49

x^{2} -7x -8=0

x^{2} -8x+x -8=0

x(x-8)+1(x-8)=0

(x+1)(x-8)=0

⇒ x= -1 and x = 8

Now substitute values of x  in equation b to obtains values of y

⇒ x+y=7

for x = -1

⇒ -1+y=7

⇒ y=7+1

⇒ y=8

Thus (x,y)=(-1,8)

For x =8

⇒ 8+y=7

⇒ y=7-8

⇒ y=-1

Thus (x,y)=(8,-1)

Hence Option A is the correct solution .


6 0
3 years ago
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What is3(4+4x)=12x+12
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Solve for x.

First multiply everything in the parenthesis by 3.

12 + 12x = 12 + 12x

There is an infinite amount of solutions.

Hope this helps!
3 0
3 years ago
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