9. What property was used to get from line 1 to line 2?
line 1: 16 + 3x + 5 + 2x
line 2:2x + 3x + 5 + 16
line 3:5x + 21

Answers

Answer 1

Answer: Commutative Property of Addition

This property says that A+B = B+A. The order of addition doesn't matter.

As an example, 2+3 = 3+2 since both sides evaluate to 5.


Related Questions

Find the Area of the quadrilateral. Please help

Answers

Answer:

18 ft^2

Step-by-step explanation:

This quadrilateral is a parallelogram.

Area = base × height

= 6 × 3

= 18 ft^2

Two trucks leave a warehouse at the same​ time, traveling in opposite directions. The rate of the faster truck exceeds that of the slower truck by miles per hour. After ​hours, they are miles apart. What are the rates of the​ trucks? Use the table below to organize your work

Answers

Answer:

Speed of the slower truck = 57.5 miles/hour

Speed of the faster truck = 62.5 miles/hour

Step-by-step explanation:

Using missing information;

Assume;

Speed of the slower truck = a

Speed of the faster truck = a + 5

Distance traveled by the slower truck = d

Distance traveled by the faster truck = 600 - d

So,

a(5) = d ........ Eq1

(a+5)(5) = 600 - d

5a + 25 = 600 - d

So,

5a + 25 = 600 - 5a

10a = 575

a = 57.5

Speed of the slower truck = 57.5 miles/hour

Speed of the faster truck = a + 5

Speed of the faster truck = 57.5 + 5

Speed of the faster truck = 62.5 miles/hour

which equation represents a linear function that has a slope of g and a y-intercept of -6
o y--3x+2
o y-4x-6
o y-4x+6
o y-8x+

Answers

Answer:

B

Step-by-step explanation:

the slope of the line is the number that multiplies the x

the y intercept is the constant therm

Three rays have a common vertex on a line. Write and solve equations to find the measures of m and n

Answers

Answer:

n = 90 - 62

n = 28º

m = 180 - (62 + n + 27)

m = 180 - (62 + 28 + 27)

m = 180 - 117

m = 63º

in the function f(x) = (x+2)2 -3 the minimum value occurs when x is

Answers

Answer:

x=2

Step-by-step explanation:

the minimum value of y is when x = 2.

Answer:

The minimum is at x = -2

Step-by-step explanation:

f(x) = (x+2)^2 -3

This is in vertex form

f(x) = ( x-h)^2 +k  where (h,k) is the vertex

Since this is an  upwards  opening  parabola the vertex is the minimum

f(x) = (x- -2)^2 -3

The vertex is (-2,-3)

The minimum is at x = -2

Which is the best explanation for why − √ 10 is irrational?

Answers

Step-by-step explanation:

- square root of 10 is irrational because it is less than zero. - square root of 10 is irrational because it is not a whole number.

Upon prime factorizing 10 i.e. 21 × 51, 2 is in odd power. Therefore, the square root of 10 is irrational.


What is the quotient?


Answers

Answer:

I'm not good at math

Step-by-step explanation:

a result obtained by dividing one quantity by another.

Help please someone

Answers

Answer: step by step explanation

it's just that you have to multiply the number under root and it's any number is square then you can take it out of root.

is -49 a rational number? please explain

Answers

Yes, because a rational number is any number that can be expressed as a fraction a/b where a/b are both integers, but cannot be zero.

Determine the equation of the graph

Answers

There is no graph here

⚠️❗️⚠️❗️⚠️❗️10 POINTS PLEASE HELP ASAP I NEED THE ANSWER TO THE PROBLEM ANSWERED BELOW ⚠️❗️⚠️❗️⚠️❗️


What is the area❓ No links or troll answers you’ll be reported

Answers

Answer:

Step-by-step explanation:

so you have 2 rectangles and you first need to find what the area is for the side opposite 25 which is 9 because the 2 9's are the same as the missing number.

now 16x9=144

and 9x9x9=729

725x25=18225

hope that helps

have a great day/night

19NBoli

Can someone please answer this

Answers

Answer:

[tex] {7}^{3} (as \: a \: single \: power \: of \: 7)[/tex]

Step-by-step explanation:

Given

[tex] {7}^{4} \div 7[/tex]

Since,

[tex] {a}^{x} \div {a}^{y} = {a}^{x - y} [/tex]

Hence,

[tex] = {7}^{4 - 3} [/tex]

[tex] = {7}^{3} (ans)(as \: a \: single \: power \: of \: 7)[/tex]

what is 42 + 40 x 5 (3 +8) x 25

Answers

Answer:

55042

Step-by-step explanation:

Answer:

55042

Step-by-step explanation:

At Walmart, a $525 bicycle is marked, "Get a 30% discount." What is the sale
price of the bicycle?

Answers

Answer:

367.50

Step-by-step explanation:

First find the discount

525 * 30%

525 * .30

157.50

Subtract this from the price

525-175.50

367.50

This is the new price

Answer:

367.5

Step-by-step explanation:

30% means 0.30

1 - 0.30 = 0.70

525 x 0.70 = 367.5

Let f(x) =3x-3 and g(x) = 21
evaluate
(-25)(-1)​

Answers

use photo math , that will help a lot!!

Calculate the distance between the points KL if L is located on the origin and K is 3 units to the left of y-axis and 5 units upwards from the x-axis.

Answers

Answer:

answer must be √34 in my opinion.

brett colors 25% percent of the total shapes on the paper he colors 6 shapes enetr the number of shapes on bretts paper


HELP QUICK PLS

Answers

Answer:

24 shapes

Step-by-step explanation:

Answer:

24 shapes I hope this helps :)

Step-by-step explanation:

7(-6 1/8) or 7 x -6 1/8=?? brainilist

Answers

Answer:

Step-by-step explanation:

[tex]7 \times -6\frac{1}{8} = 7 \times \frac{-49}{8} = -\frac{343}{8}[/tex]

Answer:

-343/8 or -42 7/8

Step-by-step explanation:

7(-49/8) = -343/8 or -42 7/8

Using the diagram below, what is m< S to the nearest degree?
A) 64 degrees
B) 26 degrees
C) 67 degrees
D) 23 degrees

Answers

Answer:

C

Step-by-step explanation:

tan S = opposite / adjacent

S = tan -1 ( 120 / 52) = 66.57 degree ≅ 67

Please help.
What is the area of triangle ABC?

Answers

Answer:

C

Step-by-step explanation:

Answer:C

Step-by-step explanation:

A car can drive 30 miles in 25 minutes. How many miles could it drive in 75 minutes?

Answers

90 miles

75/25= 3
so 3*30 = 90

Answer:

90

First, divide: 75/25=3

Last 3x 30= 90

or

  30

x 3

--------

90

Terry spends $49.00 on apples. Howard buys 12 apples. Each apple costs $7.00. How many apples did Terry buy?

Answers

Answer:

7

Step-by-step explanation:

49.00/7.00 = 7

Answer:

Terry bought 7 apples.

Step-by-step explanation:

7 times 7 equals 49, in which Terry spent 49 dollars on apples, and each apple costs 7 dollars, therefor Terry bought 7 apples.

if you had to make 1000 toys and one toy used 2 (AA) batteries. how many would you need?​

Answers

Answer:

2000 batteries

Step-by-step explanation:

1000*2=2000

2,000 batteries .. that how many you will need

Carly takes a taxi from her house to her friends. Their houses are 6km apart. The taxi driver charges a flat fee of $10 plus $0.25/km. This can be modeled using the equation: C=0.25+10, where X represents the distance travelled in km and C represents the cost in dollars. How much will the taxi ride cost?

Answers

Answer:

$11.50

Step-by-step explanation:

0.25 times 6= 1.5, plus 10= 11.50

what is the value of 2 X ?​

Answers

1/2 .. i think that

ILL SEND EXTRA POINTS JUST
PLEASE HELP

Answers

Answer: A = P + 0.2P

Step-by-step explanation:

r = 0.04, t = 5

Original equation:

A = P + Prt

A = P + P(0.04)(5)

A = P + P(0.2)

Please help me with this The picture shows the question and anwsers

Answers

Answer:

D is the answer

hope this helps

have a good day :)

Step-by-step explanation:

Translate this phrase into an algebraic expression,
17 increased by twice a number. Use a variable n to represent the unknown number.

Please help and thank you

Answers

Answer:

17+2n

Step-by-step explanation:

Somebody please help meee!!!!

Answers

Answer:

288.4

Step-by-step explanation:

v=pi r^2 H

Answer:

I think answer is 288.4 plz mark me brainlist

At the moment a certain medicine is injected, its concentration in the bloodstream is 120 milligrams per liter. From that moment forward, the medicine's concentration drops by 30% percent each hour. Write a function that gives the medicine's concentration in milligrams per liter, C(t), t hours after the medicine was injected. If anyone responds, thank you <3

Answers

Answer: [tex]C(t) = 120(1-0.30)^t[/tex]

Step-by-step explanation:

Exponential equation for decay:[tex]y= A(1-r)^t[/tex], where A = initial value, r= decay rate , t= time.

As per given, A = 120ml , r= 0.30

[tex]C(t) = 120(1-0.30)^t[/tex]

Hence, the required function that gives the medicine's concentration in milligrams per liter, C(t), t hours after the medicine was injected.

[tex]C(t) = 120(1-0.30)^t[/tex]

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