Learn Decimals: Easy Solutions to Understand

Bank Account A has $$ 750.92$ , and Bank Account B $$ 675.44$ . Account A changes by $- $ 216.38$ , and Account B changes by $- $ 168.49$ . Which account has the greater balance?

fun9vk 2022-03-15

When are $\frac{1}{n!}$ repeating decimal with single digit repetend

hinnikendvjg 2022-03-15

When is $\frac{X}{R} (X)$ an integer where $R (X)$ is the reverse of an integer X?

Aiden Delacruz 2022-03-15

Where does $\frac{3}{4}$ lie on the real number line?

Kaleb Riddle 2022-03-15

A Susan B. Anthony dollar coin has a diameter of 26.50 millimeters. What is the area of the coin to the nearest hundredth?

Kymani Patrick 2022-03-14

Why is $\sum {lim}_{n = 1}^{\infty} e^{- {(\frac{n}{10})}^{2}}$ almost equal to $5 \sqrt{π} - \frac{1}{2}$ (agreeing up to 427 digits)?

Kinley Padilla 2022-03-13

When does the fraction $\frac{142}{2.54}$ ever repeat?

Samir Duffy 2022-03-12

What is the sum of number of digits of the numbers $2^{2001}$ and $5^{2001}$

Teagan Horton 2022-03-12

Where to stop when doing decimal division?
We know that $\frac{1}{8} = 0.125$ via calculator; however, if I didn't have access to a calculator and wanted to find this via long division, why would I stop at 3 decimal places? Why not 2 or 4?

Noelle King 2022-03-12

Why are repeating decimals often self-inversions?
Given a reptend r with 2k digits as in
$\frac{1}{x} = 0 . \dots \overset{―}{r_{1} r_{2} \dots r_{(2 k)}}$ ,
you will often find that $r_{i} + r_{(k + i)} \equiv - 1 \pm o d b$ for all $i \leq k$

ilybabeilyl85 2022-03-08

Why sum of digits in even base have such property?
Function $D (a, b)$ define as sum of digit of a in base b. Example $D (5, 2) = 2$ .
Let
$f (m, n) = \sum_{k = 1}^{m} {(- 1)}^{D (k, n)}$

DeamyKetSate1m 2022-03-08

Write Multiplication Using Sigma?

Reginald Owens 2022-03-03

A periodic decimal expansion sequence
Let ${(x_{n})}_{n \in N}$ be a sequence with the following terms.
$x_{1} = 0, 1$
$x_{2} = 0, 13$
$x_{3} = 0, 131$
$x_{4} = 0, 1313$
$x_{5} = 0, 13131$
and son on. Prove $lim_{n \to \infty} x_{n} = \frac{13}{99}$

blakkazn924e4y 2022-03-03

4.17 4.7 4.01 4.07, Which number has the greatest value?

kramtus51 2022-01-18

Write the expression in rectangular form, $x + y i$ , and in exponential form $r e^{i θ}$ .
${(\sqrt{13} - i)}^{4}$
The rectangular form of the given expression is ?, and the exponential form of the given expression is ? (Simplify your answers. Use integers or decimals for any numbers in the expressions. Round the final answer to three decimal places as needed intermediate values to four decimal places as needed.)

zeotropojd 2022-01-18

If the ratio is 3:1 what is the percentage?

Teddy Dillard 2022-01-18

$\begin{array}{cc} Wind (mph) & Wind-Chill (^{\circ} F) \\ 5 & 25 \\ 10 & 21 \\ 15 & 19 \\ 20 & 17 \\ 25 & 16 \\ 30 & 15 \\ 35 & 14 \\ 40 & 13 \\ 45 & 12 \\ 50 & 12 \\ 55 & 11 \\ 60 & 10 \end{array}$
The table gives the wind chill temperature when the outside temperature is $30^{\circ} F$ .
a. Use x as the wind speed and create a quadratic model for the data.
b. At what wind speed does the model estimate that the wind chill will be $14^{\circ} F$ ?
c. Is the model found in part (a) valid for $x > 63$ ? Explain

Monique Slaughter 2022-01-18

Write an equation in $y = m x + b$ form for the linear relationship shown in the table.
Wind-chill effect of 20-mile-per-hour wind
$\begin{array}{cc} Actual Temperature(t) & Wind-Chill Temperature (w) \\ 45^{\circ} F & 25^{\circ} F \\ 25^{\circ} & - 3^{\circ} F \\ 5^{\circ} F & - 31^{\circ} F \end{array}$

Some of you may remember solving equations with decimals by looking back at the school years, yet it is also easy to get lost in this seemingly simple pre-algebra field. If working with decimals sounds too complex to you or you require a reminder, have a look at the list of decimals questions and answers below to see how it is done.

At the same time, if you are still not sure about finding the right solution, start with the high school Math and see more than one solution as you seek similarities.

Pre-Algebra