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Romashka-Z-Leto [24]
2 years ago
15

1. Simplify 3(2x - y) + 6y. 5x + 7y 6x + 3y 2x + 3y 6x - 7y

Mathematics
2 answers:
xxMikexx [17]2 years ago
7 0

\huge\boxed{Hi\: there!}

Here, we use the Distributive Property:

a(b+c)=ab+ac

3(2x-y)+6y=6x-3y+6y

Combine like terms:

6x+3y

\huge\boxed{Therefore,\: our \:equation\: is:6x+3y}

\huge\bf{Good \:luck \:with \:your \: studies! :)\\~Unknown Dreamer}

asambeis [7]2 years ago
3 0

Answer:

6x + 3y

Step-by-step explanation:

3(2x - y) + 6y ← distribute parenthesis by 3

= 6x - 3y + 6y ← collect like terms

= 6x + 3y

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Solve the system of linear equations.
icang [17]

Answer: The set does not have a solution

Step-by-step explanation:

Adding Equations 1 & 3 we get 5x = 7. This gives x = 7/5

Putting this value of x in eq. 2 we get

-2y + 2z = -1-(7/5) or

2y - 2z = 12/5  or  5y - 5z = 6

Multiplying eq. 1 by 2  we get  

4x + 2y - 2z = 6

adding this with eq. 2 we get 5x = 5 or x = 1

As the common solution for x from equations 1&3 does not satisfy eq. 1&2 it comes out that the three equations do not have a common solution.

Same can be verified by using different sets of two equations also.

7 0
3 years ago
Robbert wants to put lights around the edge of his yard.The yard if 40 feet long and 23 feet wide.How many yards of light does h
slega [8]

Answer:

102.222 square yards of light.

Step-by-step explanation:

From the above question, the yard had the dimensions 40 feet long and 23 feet wide.

Hence, the yard is rectangular in shape.

We have to find the area of the yard.

The formula is given as:

Area = Length × Width

= 40 feet × 23 feet

= 920 square feet

Converting to yards

1 square foot = 0.111 square yard

920 square feet = x

Cross Multiply

x = 920 × 0.111 square yard

x = 102.222 square yards.

Therefore, Robbert would need 102.222 square yards of light.

6 0
3 years ago
Which ratio is equivalent to 5/10
grin007 [14]
5÷5=1
10÷5=2
answer is 1:2
3 0
3 years ago
Mai worked for 12 hours each day for 8 days. Then the next day she worked 7 hours. How many hours did Mai work in all?
Fiesta28 [93]

Answer:

91 hours

Step-by-step explanation:

Add 12 to itself 8 times and then add 7 once

8 0
3 years ago
How do i find the missing value of “?”
Sveta_85 [38]
Add the 3 numbers that you know.
Multiply the mean of 73 by 5 (numbers you have).
Add the numbers you are given.
Subtract the sum you have from the total sum to find your missing number.
7 0
3 years ago
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