Find the value of x in the equation
find the value of x in the equation - 1

Answers

Answer 1
Answer:

Answer: 10.5 (equivalent to the fraction 21/2)

To get this answer, you set 10x-15 equal to 90 and solve for x. The reason why these two angles are equal is because they are vertical angles.

10x-15 = 90

10x-15+15 = 90+15 ...... add 15 to both sides

10x = 105

10x/10 = 105/10 ...... divide both sides by 10

x = 105/10

x = 21/2 is the answer in fraction form

x = 10.5 is the answer in decimal form

Answer 2
Answer:

You'll use what the vertical angles theorem tells you to solve this.

The vertical angles theorem says that vertical angles are congruent, which is what the angle with (10x-15) and the opposite angle (90) are.

Since they are vertical angles, they are congruent so you can set up an equation where they are equal and solve for x.

(10x-15) = 90

1. Get rid of the parentheses.

10x-15 = 90

2. Add 15 to both sides.

10x = 105

3. Divide both sides by 10.

x = 10.5

Answer is:

x = 10.5


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Help plz i want help

Answers

Answer:

1/3

Step-by-step explanation:

There are 9 possible outcomes

We want the ones that have the same color which are GG , YY or BB

P ( same color) = number of same color outcomes / total outcomes

                          = 3/9

                          =1/3

Answer:

1/3

Step-by-step explanation:

3/9, simplify to 1/3

12 times what equals 78

Answers

The value 78 is 12 times of number 6.

What is Algebra?

A branch of mathematics known as algebra deals with symbols and the mathematical operations performed on them.

Variables are the name given to these symbols because they lack set values.

In orderto determine the values, these symbols are also subjected to various addition, subtraction, multiplication, and division arithmetic operations.

Given:

12 times what equals 78

let the number whose 12 times equals 78 be x then

12 x = 78

Divide both side by 12

12x /12 = 78/ 12

x = 6

Learn more about Algebra here:

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The answer is 6.5. This is because you have to divide 78 by 12 since it is a factor family.

A bag contains 5 red marbles and 7 blue marbles. You randomly pick a marble and then pick a second without returning the marbles to the bag. Both marbles are red.

Answers

Probability(both marbles are red) = 5/12 * 4/11 = 20/132


= 5/33 Answer

What is the common denominator 1/4 1/3

Answers

12 because if u multiply 3*4 it is 12 and 4*3 is 12 so they both have 12 in common I hope this helps and have a nice day =)
12 because 4 times 3 equals 12 and 3 times 4 equals 12

HELP ME OUT I NEED THIS TO FINISH SOMETHING

Answers

Answer:

Hi so you need to find an intersection so like 2/2 and -1/-1 and you get one for both then you go up 3 from -1/-1 and go over 2 to get your 2/2 now you take 3 divided by 2=1.5

Step-by-step explanation:

Answer:

A. y=(3)/(2)x-1

B. y=(3)/(2)x

Step-by-step explanation:

For the graph shown, the slope is (3)/(2) and the y-intercept is -1. For the new line, it would have the same slope, but would have a y-intercept of 0.

How can i use models to relate fractions and decimals?

Answers

You can make visual (model) witch helps you see what you are doing
you can use different colors