209 divided 3. Please help! Sister got 6,911 I got 69.6 repeating. What is the answer. Thanks for the help.

Answers

Answer 1
Answer: Your sister made an error in calculating the answer, as 209 divided by 3 will not equate to a number bigger than the original number you start off with. 

However, you are correct, as 209 ÷ 3 = 69.6 recurring. 

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What is the volume of a sphere with a diameter of 4 meters? (Use 3.14 for π.) a.18.84 m^3b.100.48 m^3c.33.49 m^3d.25.12 m^3

1/5 (5b+ 15)
plzz help

Answers

Answer:

b+3

Step-by-step explanation:

You carry 1/5 and multiply it to 5b and 15 to get b+3.

In 8/100 what is the percent

Answers

The percentage would be 8%
8/100 x 100% = 8 x 1% = 8%

By what percent will a fraction change if its numerator is decreased by 50% and its denominator is decreased by 25%?(It's not 33%, 1/3%, or -33% btw)

Answers

Answer:

The fractional change is (1)/(3) % .

Step-by-step explanation:

Given as :

The original fraction = (x)/(y)

Where numerator = x

Denominator = y

According to question

The numerator decreased by 50%

Let The new numerator = x' = x - 50% of x

I,e x' = x ( 1 - (50)/(100))

Or, x' = x ((100-50)/(100))

Or, x' = (50)/(100) x

or, x' = (x)/(2)              .........A

Again

The new denominator = y' = y - 25% of y

i.e y' = y (1 - (25)/(100))

Or, y' = y ((100-25)/(100))

Or, y' = y ((75)/(100))

Or, y' = (3 y)/(4)              ............B

So, The new fraction = (x')/(y') = ((x)/(2))/((3 y)/(4))

Or, (x')/(y') = (2 x)/(3 y)

So, The fractional change = (1-(2)/(3) )/(1) × 100

Or, The fractional change = (1)/(3)× 100

Hence, The fractional change is (1)/(3) % . Answer

3. Find a solution to the following system of equations.
-3x + 3y = -9
-3x + y = 7

Answers

Answer:

x = 5

y = 2

Step-by-step explanation:

-3x + 3y = -9

3y = 3x - 9

Equation 1. y = x - 3

-3x + y = 7

Equation 2. y = 3x + 7

So, put number 1 equation to number 2's y :

x - 3 = 3x + 7

x -3x = 7 + 3

-2x = 10

2x = 10

x = 10/2

x = 5

And, put x, which is 5 , to the any equation to figure out the y.

This time, I'll use equation number 1.

y = 5 - 3

y = 2

What is the relationship between Za and Zb?

Answers

Answer:

they are supplementary to each other

Step-by-step explanation:

they are supplementary

A farmer is dividing 128 eggs into 5 crates , how many eggs will go into each crate?

Answers

This is a division problem. You can use the standard algorithm of 128/ 5. Or you can create equal groups (draw five circles) and count out eggs until you distribute them all. I would start with 20 in each circle. That would be 20+ 20+ 20+ 20+ 20= 100 Then think 128-100= 28 Next count by 5's. 5+ 5+ 5+ 5+ 5= 25 Then think what is 28-25= 3 so 128/ 5= 25 with a reminder of 3 eggs left over.