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Dmitry_Shevchenko [17]

2 years ago

12

Part 3 of the notes some more coming

2 answers:

finlep [7]2 years ago

7 0

6% = 0.06

To find 6% of 530 you multiple

530*0.06 = 31.8

larisa86 [58]2 years ago

6 0

530 ➗ 100= 5.3 5.30x6= 31.80

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shepuryov [24]

9/72

I forgot how to do this

6 0

3 years ago

Find the perimeter of shape #8

Wittaler [7]

The squiggly lines and the 2 straight lines through to sides of the pentagon mean that they are congruent (equal in length).

So, to find the perimeter of a regular polygon, you add all of its sides together.

So, the perimeter= 4x-2+x-2+x-2+x+2+x+2

To simplify it, add all of the x's together.

4x+x+x+x+x=8x

Perimeter=8x-2-2-2+2+2

-2-2=-4-2=-6+2=-4+2=-2

Perimeter=8x-2

Reach out to me if you have any questions. I'd be glad to help! :)

4 0

3 years ago

Write a linear equation that represents the cost of buying t-shirts from Paula's printing. identify the meaning of each variable

g100num [7]

Answer:

Part 1) $y=x+21.5$

Part 2) $y=x+18$

Step-by-step explanation:

Part 1) Write a linear equation that represents the cost of buying t-shirts from Paula's printing.

Let

x ----> the number of t-shirts

y ----> the cost in dollars

step 1

Find the slope

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

take two points from the table

(2,23.5) and (4,25.5)

substitute in the formula

$m=\frac{25.5-23.5}{4-2}$

$m=\frac{2}{2}=1$

step 2

Find the equation of the line in point slope form

$y-y1=m(x-x1)$

we have

$m=1$

$(x1,y1)=(2,23.5)$

substitute

$y-23.5=(1)(x-2)$

Convert to slope intercept form

$y=mx+b$

$y=x-2+23.5$

$y=x+21.5$

Part 2) Write a linear equation that represents the cost of buying t-shirts from Shantay's shirts.

Let

x ----> the number of t-shirts

y ----> the cost in dollars

step 1

Find the slope

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

take two points from the table

(2,20) and (4,22)

substitute in the formula

$m=\frac{22-20}{4-2}$

$m=\frac{2}{2}=1$

step 2

Find the equation of the line in point slope form

$y-y1=m(x-x1)$

we have

$m=1$

$(x1,y1)=(2,20)$

substitute

$y-20=(1)(x-2)$

Convert to slope intercept form

$y=mx+b$

$y=x-2+20$

$y=x+18$

6 0

2 years ago

What is the height of the buoy at 3 seconds? 12 seconds?

cricket20 [7]

We need a picture bud

7 0

3 years ago

Shalnov [3]

$y = 0.25x + 40$

$60 = 0.25x + 40$

$60 - 40 = 0.25x + 40 - 40$

$20 = 0.25x$

$\frac{20}{0.25} = \frac{0.25x}{0.25}$

$80 = x$

She can buy a maximum of 80 cups.

5 0

3 years ago