Ask question

Ask question

All categories

4 years ago

7

Janet has $120. If she saves$20 per week, in how many days will she have $500?

1 answer:

maxonik [38]4 years ago

8 0

She will have $500 in 5 days because when she takes out the 20 every week she will have had $100 so to make $500 she will have to have made 5 $100

You might be interested in

If bc is the diameter of the circle below, what is the area of the circle

dangina [55]

Answer:

option a.

radius of the circle=3 units.

area of the circle= pi×r²

area of circle=pi×3²

area of circle=pi×9units²

5 0

3 years ago

Read 2 more answers

F(x) = 2x^3 + 8

riadik2000 [5.3K]

Answer:32-10x

Step-by-step explanation:

7 0

3 years ago

5(y-4)=7(2y+1)<br>I need the answer

8_murik_8 [283]

Answer: $y = -3$

Move all terms containing y to the left, all other terms to the right

<u>Add -14y to each side of the equation</u>

<u></u> $-20 + 5y + -14y = 7 + 14y + -14y$ <u></u>

<u></u>

<u>Combine like terms: 5y + -14y = -9y </u>

<u></u> $-20 + -9y = 7 + 14y + -14y$ <u></u>

<u></u>

<u>Combine like terms: 14y + -14y = 0 </u>

<u></u> $-20 + -9y = 7 + 0\\-20 + -9y = 7$ <u></u>

<u></u>

<u>Add '20' to each side of the equation</u>

<u></u> $-20 + 20 + -9y = 7 + 20$ <u></u>

<u></u>

<u>Combine like terms: -20 + 20 = 0 </u>

<u></u> $0 + -9y = 7 + 20\\-9y = 7 + 20$ <u></u>

<u></u>

<u>Combine like terms: 7 + 20 = 27 </u>

<u></u> $-9y = 27$ <u></u>

<u></u>

<u>Divide each side by -9</u>

<u></u> $-9y/9=27/-9\\y=-3$ <u></u>

8 0

4 years ago

what is the common ratio for the geometric sequence below, written as a fraction? 768, 480, 300, 187.5, …

Crazy boy [7]

Let

$a1=768\\a2=480\\a3=300\\a4=187.5$

Step $1$

Find $\frac{a2}{a1}$

$\frac{a2}{a1} =\frac{480}{768}$

Divide by $96$ numerator and denominator

$\frac{480}{768} =\frac{\frac{480}{96}}{\frac{768}{96}} \\ \\ \frac{480}{768}=\frac{5}{8}$

$a2=a1*\frac{5}{8}$

Step $2$

Find $\frac{a3}{a2}$

$\frac{a3}{a2} =\frac{300}{480}$

Divide by $60$ numerator and denominator

$\frac{300}{480} =\frac{\frac{300}{60}}{\frac{480}{60}} \\ \\ \frac{300}{480}=\frac{5}{8}$

$a3=a2*\frac{5}{8}$

Step $3$

Find $\frac{a4}{a3}$

$a4=187.5 \\ a4=187\frac{1}{2} \\ \\ a4=\frac{375}{2}$

$\frac{a4}{a3} =\frac{\frac{375}{2}}{300} \\ \\ \frac{a4}{a3} =\frac{375}{600}$

Divide by $75$ numerator and denominator

$\frac{375}{600} =\frac{\frac{375}{75}}{\frac{600}{75}} \\ \\ \frac{375}{600}=\frac{5}{8}$

$a4=a3*\frac{5}{8}$

In this problem

The geometric sequence formula is equal to

$a(n+1)=a(n)*\frac{5}{8}\\$

For $n\geq 1$

therefore

the answer is

the common ratio for the geometric sequence above is $\frac{5}{8}$

6 0

4 years ago

Read 2 more answers

A 445-foot fence encloses a pasture. What is the length of each side of the pasture?

fredd [130]

Answer:

89*5

Step-by-step explanation:

3 0

3 years ago