Mathematics, 26.06.2019 23:40 coralaguilar1702

The total cost for 9 bracelets, including shipping was $72. the shipping charge was $9. define your variable and write an equation that models the cost of each bracelet.
4. use the equation you have written above determine the cost for each bracelet. show the algebraic steps that it takes to find the answer. provide your conclusion.

Answers: 2

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Answer from: hasshh

a) Equation: 9x+9 = 72

b) x =7

Step-by-step explanation:

The total cost of 9 bracelets = $72

Shipping charge = $9

a) Define your variable and write an equation that models the cost of each bracelet.

Let x be the cost of one bracelet, the equation will be

9x + 9 = 72

As 9 bracelets were there and the shipping cost was 9 and total cost was 72.

b) Use the equation you have written above determine the cost for each bracelet. Show the algebraic steps that it takes to find the answer.

Now solving the equation to find the value of x that represent cost of each bracelet

9x + 9 = 72

Adding -9 on both sides

9x +9 -9 = 72 -9

9x = 63

Dividing both sides by 9

9x/9 = 63/9

x = 7

The value of x=7 so, the cost of each bracelet is $7

c) Provide your conclusion.

So, each bracelet was of cost $7 and $9 was the shipping charge. so, the total cost is $72.

We would check whether our equation is satisfied.

9x+ 9 = 72

9(7) + 9 = 72

63 + 9 = 72

72 = 72

The equation is satisfied.

Answer from: katlyn10289

The cost of each bracelet is: $7

Step-by-step explanation:

Let's call x the cost of each bracelet.

Then the cost of the 9 bracelets is:

If we know that the cost of the bracelets plus the shipping was $ 72 and the cost of shipping is $ 9.

The total cost was:

9x + 9 = 72

Now we solve the equation for the variable x.

9x + 9 = 72

Subtract 9 on both sides of equality

9x + 9-9 = 72-9

9x = 72-9

9x = 63

Divide by 9 on both sides of equality

$\frac{9}{9}x = \frac{63}{9}$

$x = \frac{63}{9}$

$x = \$7$

Answer from: Quest

why do wages differ across industries

step-by-step explanation :

micro economists are concerned with economics on an industry or individual firm basis.

macro economists are concerned with national and international level

Answer from: Quest

$w\geq 14$

the smallest possible measurement of the width is 14 feet

step-by-step explanation:

let's assume length of parallelogram is 'l'

width of parallelogram is 'w'

the perimeter of a parallelogram must be no less than 40 feet

so, we get

$2l+2w\geq 40$

we are given

length of parallelogram is 6 feet

so,

l=6

we can plug it

$2\times 6+2w\geq 40$

now, we can solve for w

$12+2w\geq 40$

subtract both sides by 12

$12+2w-12\geq 40-12$

$2w\geq 28$

divide both sides by 2

and we get

$w\geq 14$

so,

the smallest possible measurement of the width is 14 feet

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