MATHEMATICS MIDDLE SCHOOL

Plz tell me the answer quick!! (With steps)

Answers

Answer 1

Answer:

SOLUTION:

Exterior angle = Sum of opposite interiors angles

15x - 5 = 43 + (9x - 6)

15x - 5 = 43 + 9x - 6

15x - 9x = 43 - 6 + 5

6x = 42

x = 7

Answer: x = 7

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3 is 20% of what number

Answers

First: (20/100)x = 3
Second: 20x / 100 = 3
Third: 20x = 3 * 100
Fourth/Final: x = 3*100/ 20 = 15
Answer:
15

Hi!

3 ⇒ 20%
x ⇒ 100%

20x = 3·(100)
20x = 300
x = 300/20
x = 30/2
x = 15

Answer:

3 is 20% of 15

HOW MANY TENTHS ARE IN 13.58

Answers

5 tenths, because look at this:

13.58. Tenths is after the decimal. Hope this helps!

There are 135.8 of them.

Solve for x - Pre algebra

Answers

The sum of the measures of the interior angles of a triangle is 180 degrees.

Make the three angles add up to 180 in an equation.

6x + 130 + 4x = 180

Combine like terms.

10x + 130 = 180

Subtract 130 from both sides.

10x = 50

Divide both sides by 10.

x = 5 is your answer.

In this case you would set it up as
$6x + 4x + 130 = 180$
(180 represents the degree of the triangle)

Add up like terms
$10x + 130 = 180$
Subtract 130 to the other side (180-130)

$10x = 50$
Divide 10 to the other side ( 50/10)
.
$x = 5$
Hope this was clear :)

Please help i will give brainlest!!!!!!!

Answers

5+z=5z
Hopes this helps!

the product of 5 and z =5*z=5z
so the expression is 5z

Melissa will rent a car for the weekend. She can choose one of two plans. The first plan has an initial fee of $61.96 and costs an additional $0.10 per mile driven. The second plan has an initial fee of $51.96 and costs an additional $0.14 per mile driven. How many miles would Melissa need to drive for the two plans to cost the same?