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BabaBlast [244]

3 years ago

8

Elaine is making a flower garden with rows of flowers. The garden is 2020 yards long. She wants a total of 77 rows of flowers th

at are all the same width. Which calculation should Elaine use to decide how wide to make each row?

2 answers:

natulia [17]3 years ago

6 0

Answer:

<em>Elaine should use the calculation $w = \frac{L}{r}=\frac{2020}{77}yards$ to find the width of each row of flowers</em>

Step-by-step explanation:

Total length of garden , L= 2020 yards

Number of rows of flowers to be accommodated , r= 77 rows

Let the width of each row be w yards then

$L=w\times r$

=> $w = \frac{L}{r}=\frac{2020}{77}yards=26.234 yards$

Thus Elaine should use the calculation $w = \frac{L}{r}=\frac{2020}{77}yards$ to find the width of each row of flowers

aleksandrvk [35]3 years ago

3 0

Wouldn't she divide 2020 and 77?

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PLEASE HELP !!!!!!! Jordan got a new money bank for his birthday with $20 inside. He puts part of his weekly allowance in his ba

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Answer:

Slope of the function is $=3.75$ ,Y-intercept $=20$ .

The function is $y=3.75(x)+20$ with initial value $=20$ ,Jordan puts $\$3.75$ each week andthe amount saved by Jordan after $52$ week $=215\$$ .

Step-by-step explanation:

To understand the slope and y-intercept lets assign $x$ as number of weeks and $y$ as the money saved by Jordan.

Jordan is already having a sum of $\$20$ inside the money bank so in $0$ week the amount is $\$20$ can be written as $(x,y) =(0,20)$ in coordinate form.

SImilarly

We have $(x,y) =(0,20)$ and $(x_1,y_1) =(25,113.75)$

Part A:

The function is $y=m(x)+b$

From point-slope form,we have slope (m)

and $m=\frac{y_1-y}{x_1-x}$ ,plugging the values of the points.

$m=\frac{113.75-20}{25-0}=3.75$

Y-intercept of this function is the constant term or the money of $\$20$ that is already inside the money bank.

We can also calculate y-intercept by arranging the function as $b=y-m(x)$ choosing any $(x_1,y_1) = (25,113.75)$ coordinate and here $b$ is the y-intercept.

The result will be same.

Part B:

The equation <u> $y=3.75(x)$ </u> can represent the function described.

And the initial value is the <u>y-intercept $=\$20$ </u>

Jordan puts<u> $3.75$ </u>in his bank each week.

After $52$ week the amount saved by Jordan ,here $x=52$ ,as the x-variable is the number of weeks.

Plugging the value of $x=52$ in $y=m(x)+b$ where $m=3.75$ so the equation becomes $y=3.75(x)+20$

$y=3.75(x)+20 =3.75(52)+20=\$215$

So basically the function is $y=3.75(x)+20$ and the amount saved by Jordan after $52$ week $=215\$$ .

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