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2 years ago

What is 31,084.5 expanded notation

Mathematics

1 answer:

Svet_ta [14]2 years ago

3 0

Answer:

30000+1000+80+4+0.5

Step-by-step explanation:

Expanded notation can be defined as to rewrite the numbers to show their place values

For example in the given question 3 is at the tenth thousand place, 1 is at the thousand'th place,8 at tenth and 4 at unit place so the solution for the question is given below:

30000+1000+80+4+0.5

3×10000+1×1000+8×10+4×1+(5×1÷10)

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mr Goodwill [35]

X=4
cross multiply
3x=12
x=4

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2 years ago

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there are 82 people in a survey who like vanilla ice cream. if 2 out of every 5 people surveyed like vanilla ice cream, how many

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82 / (2/5) = 82*5/2 = 205 people

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Roger has two dogs which are named Sparky and Cookie. The relationship of Sparky’s age, s, and Cookie’s age, c, can be represent

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Answer:

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2 years ago

Solve y = −23(x + 9) + 4 for x when y = 0.

Vlad [161]

Answer:

x = -203/23

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality

Step-by-step explanation:

Step 1: Define

Identify

y = -23(x + 9) + 4

y = 0

Step 2: Solve for x

Substitute in y: 0 = -23(x + 9) + 4
[Subtraction Property of Equality] Subtract 4 on both sides: -4 = -23(x + 9)
[Division Property of Equality] Divide -23 on both sides: 4/23 = x + 9
[Subtraction Property of Equality] Subtract 9 on both sides: -203/23 = x
Rewrite: x = -203/23

3 0

2 years ago

Read 2 more answers

Would really appreciate if u could help me with all letters but even a few are great! Thanks (the graph is hard to explain so i

defon

Part A

The equation is b = 36*a or simply b = 36a

We take the size of the farm 'a' and multiply it by 36 to get the number of bushels of corn 'b'.

-----------------------------------

Part B

The 36 means there are 36 times more bushels of corn compared to the size of the farm in acres

For example, if the size is 2 acres then
b = 36*a
b = 36*2
b = 72
yielding 72 bushels of corn

-----------------------------------

Part C

Along the first row you should have: 25 and 30 in the missing blanks (over 900 and 1080 respectively)

You find this by dividing the value of b over 36
eg: b/36 = 900/36 = 25

-------

Then along the bottom row you should have the following for the blanks: 0, 360, 1800

These values are found by multiplying the 'a' value by 36
eg: if a = 10 then b = 36*a = 36*10 = 360

-----------------------------------

Part D

Plot any two points you want from the table back in part C
So plot say (0,0) and (10,360). Then draw a straight line through those two points.

-----------------------------------

Part E

The point (30,1080) means a = 30 and b = 1080
So if the farm is 30 acres, then it can produce 1080 bushels of corn

Notice how
b = 36*a
b = 36*30 <<-- replace 'a' with 30
b = 180
And how this matches up with the fourth column of the table in part C. So you can use this part to get a hint of how to fill out the table (or at least know what one column looks like)

8 0

2 years ago