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3 years ago

I need help with numbers 9&10

Mathematics

2 answers:

andrew-mc [135]3 years ago

7 0

#9 is x=7
#10 is x=-7
hope tis helps

Crank3 years ago

4 0

9.) <span>1/2(4x-6)=11
</span>Multiply 4 and -6 by 1/2
2x-3=11
Add 3 to both sides
2x=14
Divide 14 by 2
Final Answer: x=7

10.) 2/3(6x-9)=-34
Multiply 6 and -9 by 2/3
4x-6=-34
Add 6 to both sides
4x=-34
Divide -34 by 4
Final Answer: x=-8.5

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RideAnS [48]

Answer:

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Step-by-step explanation:

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4 years ago

Mark and Don are planning to sell each of their marble collections at a garage sale. If Don has 2 more than 5 times the number o

ch4aika [34]

Mark and Don have 18 and 92 marbles respectively.

<h3>What is the solution of the equation?</h3>

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side. It demonstrates the equality of the relationship between the expressions printed on the left and right sides. We have LHS = RHS (left hand side = right hand side) in every mathematical equation. To determine the value of an unknown variable that represents an unknown quantity, equations can be solved.

Let the number of marbles Mark has be x.

According to the question,

Don has (5x+2) marbles.

Total number of marbles=110

Thus, the required equation is:

x+5x+2=110

6x=108

x=108/6

x=18

Mark has 18 marbles.

Don has (5*18+2)=92 marbles.

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brainly.com/question/2972832

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4 0

2 years ago

What is the answer to this<br> 177-63

Annette [7]

The answer is 114 to your question

7 0

4 years ago

I picked a and c correct me if I'm wrong I have until the 19th to bring my stuff up

k0ka [10]

Answer:

I believe they are correct. Sorry this is late

Step-by-step explanation:

4 0

3 years ago

Logarithms <br> 8^(x-9) = 19^(3x+2)

Sophie [7]

$\bf 8^{x-9}=19^{3x+2}\implies log(8^{x-9})=log(19^{3x+2})
\\\\\\
(x-9)log(8)=(3x+2)log(19)\impliedby distributing
\\\\\\
xlog(8)-9log(8)=3xlog(19)+2log(19)
\\\\\\
xlog(8)-3xlog(19)=9log(8)+2log(19)\impliedby \textit{common factor}
\\\\\\
x[log(8)-3log(19)]=9log(8)+2log(19)
\\\\\\
x=\cfrac{9log(8)+2log(19)}{log(8)-3log(19)}$

6 0

3 years ago