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3 years ago

(3×10)×8= which property is being used on this equation

Mathematics

2 answers:

Setler79 [48]3 years ago

7 0

Distriputiv ? Property

vlada-n [284]3 years ago

5 0

ASSOCIATIVE PROPERTY OF MULTIPLICATION because only the parenthesis moved

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andrezito [222]

Answer:

$\frac{(a+b)}{a^{2} -b^{2} }$ + $\frac{(a-b)}{a^{2} -b^{2} }$ = $\frac{2a}{a^{2} -b^{2} }$

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

At a amusement ,park 360 visitors rode the roller coaster in 3 hours.Write and solve a proportion to find the number of visitors

Pachacha [2.7K]

First you need to find out about how many people went on the roller coaster in one hour by doing 360 divided by 3 and you would get 120. So then you would try to find out how many people went on the coaster in 7 hours by doing 360 times 2 because 3 hours multiplied by 2 is 6 and you would do that to find out how many people went on the coaster in 6 hours, and you would get 720. Next, you have 1 more round of people, so you need to do 720 + 120 which is 840. So about 840 people rode the coaster in 7 hours. Hope this helped.

6 0

3 years ago

What is 0.25 divided by 1.075?

timurjin [86]

0.25 divided by 1.075 is 0.2325..
But I think 1.075 divided by 0.25 sounds more right, in case that is the problem then the answer is 4.3

4 0

3 years ago

SOLVE: High school precal

allochka39001 [22]

Tbh idk I just need help passing a class

3 0

3 years ago

Read 2 more answers

4x - 2y = -20 7x + 2y = -2

Brut [27]

Answer:

(-2, 6)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS
Equality Properties

Algebra I

Solving systems of equations using substitution/elimination
Solving systems of equations by graphing

Step-by-step explanation:

Step 1: Define systems

4x - 2y = -20

7x + 2y = -2

Step 2: Rewrite systems

4x - 2y = -20

Add 2y to both sides: 4x = 2y - 20
Divide 4 on both sides: x = 1/2y - 5

Step 3: Redefine systems

x = 1/2y - 5

7x + 2y = -2

Step 4: Solve for y

Substitution

Substitute in x: 7(1/2y - 5) + 2y = =-2
Distribute 7: 7/2y - 35 + 2y = -2
Combine like terms: 11/2y - 35 = -2
Add 35 to both sides: 11/2y = 33
Isolate y: y = 6

Step 5: Solve for x

Define original equation: 7x + 2y = -2
Substitute in y: 7x + 2(6) = -2
Multiply: 7x + 12 = -2
Subtract 12 on both sides: 7x = -14
Divide 7 on both sides: x = -2

Step 6: Graph systems

Check the system.

8 0

3 years ago