MATHEMATICS MIDDLE SCHOOL

Three times a number minus 9 is equal to two times the number plus 7

Answers

Answer 1

Answer:

n=16

Step-by-step explanation:

Make an equation

Three times a number minus 9–> 3n-9

Times means multiply, and minus means subtract

Equals two times the number plus 7–> =2n+7

Times means multiply, and plus means add

3n-9=2n+7

Solve for n, by getting n by itself

Subtract 2n from both sides

3n-2n-9=2n-2n+7

n-9=7

Add 9 to both sides

n-9+9=7+9

n=16

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How many unique triangles can be made where one angle measures 60 and another angle is obtuse

Answers

Hello,

An infinite triangles may be constructed
You choice 2 points A and B.
Draw a angle of 60°
Take the perpendicular from B on [AC) (half line) Every point outside [AH] on [AC) give an obtused triangle.

Answer:

its 15 which is more than 2 so your answer is c

Step-by-step explanation:

Which property is illustrated by this problem 5.2 + 8.1 = 8 .1 + 5.2Commutative property of addition

associative property of addition

additive identity

Answers

This is the Commutative property of addition because it changes the order of the problem as long as the answer stays the same like how each side is equal to 13.3.

Answer:

Step-by-step explanation:

This is the Commutative property of addition because it changes the order of the problem as long as the answer stays the same like how each side is equal to 13.3.

Three out of 4 students made an A on the last arithmetic test. If there are 32 students how many students made an A

Answers

24 students made an A in the last arithmetic test.

What is the ratio?

An ordered pair of numbers a and b, represented as a / b, is a ratio if b is not equal to 0. An equation with two ratios set equal to one another is called a percentage.

Given, Three out of 4 students made an A on the last arithmetic test.

out of 4 students, the student gets an A = 3

out of 1 student get A = 3/4

Since there are 32 students in total

out of 32 students, the student gets A = 3/4 * 32

out of 4 students, the student gets an A = 24

therefore, out of 32 students, there are 24 students who got A's.

Learn more about ratios here:

brainly.com/question/13419413

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The answer is 24 students

Sam wants to meet his friend Beth at a restaurant before they go to the ththeaterThe restaurant is nine kilometers south of the ththeaterPlot and label a point representing the restaurant. what are the coordinates of the point?

Answers

I suppose the restaurant's coordinates are (0, -9), but it is all relative, unless the coordinates of the restaurant have a y-value 9 less than the coordinates of the theater

Find the surface area of this triangular prism. A.2,216in
B.2,352in
C.2,384in
D.5,376in

Answers

Answer:

you add all of them together

Step-by-step explanation:

9 steps of a line segmentwhat are the nine steps of a line segment

Answers

Place the compass at one end of line segment.
Adjust the compass to slightly longer than half the line segment length.
Draw arcs above and below the line.
Keeping the same compass width, draw arcs from other end of line.
Place ruler where the arcs cross, and draw the line segment.

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