1 5⁄7 ÷ 4 2⁄7 i need the anser im stuck

2 answers:

6 0

The answer is 2/5. You need to make each fraction a improper fraction, and then flip the fraction on the right in order to multiply it.

1 5/7 ÷ 4 2/7
12/7 ÷ 30/7
12/7 × 7/30
12/30
2/5

leonid [27]2 years ago

4 0

15/7 divides by 42/7 equals 357/1000 or .357

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I have been trying to solve problem 5 and 6 for 30 mins

jeyben [28]

Answer:

x = 45

Step-by-step explanation:

Theorems you need:

The measures of 2 adjacent angles that form a straight line with the outer sides add up to 180°.
The sum of the interior angles of a triangle add up to 180° ((n-2)×180).

Knowing those, you first want to find the triangle's 3 interior angles.

The angles <QSO & <QSR are adjacent (share a common ray) and form a straight line with the outer rays, therefore they add up to 180.

So m<QSO+m<QSR=180.

Rewrite the equation: m<QSR=180-m<QSO

Plug the known value in: m<QSR=180-(3x-17)

Distribution & Combining like terms: m<QSR=180-3x+17=197-3x

Now solve for the 3 interior angles to equal 180.

(197-3x)+(25)+(2x+3)=180

Combine like terms: 225-x=180

Isolate the x term (-225 to both sides): -x=180-225=-45

Isolate the x (×-1 to both sides):

x=45

6 0

2 years ago

Felipe Rivera's savings account has a balance of 2163 After 3 years what will the amount of interest be at 4%

Allisa [31]

$\bf ~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$2163\\ r=rate\to 4\%\to \frac{4}{100}\dotfill &0.04\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{quarterly, thus four} \end{array}\dotfill &4\\ t=years\dotfill &3 \end{cases} \\\\\\ A=2163\left(1+\frac{0.04}{4}\right)^{4\cdot 3}\implies A=2163(1.01)^{12}\implies A\approx 2437.322540175$