1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Andre45 [30]
3 years ago
12

Sara makes and sells bracelets. She bought material for $28.50 and used it all to make 15 bracelets. Sara used the equation 15x-

28.50=99 to determine x, the amount she should charge for each bracelet to make a profit of $99. How much should each bracelet cost?
a. $4.70
b. $6.60
c. $8.50
d. $13.75
Mathematics
2 answers:
zysi [14]3 years ago
6 0

Answer:  The cost of each bracelet is (c) $8.50.

Step-by-step explanation:  Given that Sara bought material for $28.50 and used it all to make 15 bracelets. Sara used the equation 15x-28.50=99 to determine 'x' - the amount she should charge for each bracelet to make a profit of $99.

We are to find the price that each bracelet cost.

We will be solving the given equation which involves 'x' as unknown variable to find its value.

The solution is as follows:

15x-28.50=99\\\\\Rightarrow 15x=99+28.50\\\\\Rightarrow 15x=127.50\\\\\Rightarrow x=\dfrac{127.50}{15}\\\\\Rightarrow x=8.50.

So, each bracelet cost $8.50.

Thus, (c) is the correct option.

g100num [7]3 years ago
5 0
Each bracelet should cost $8.50. Replace x with 8.50, 15(8.50)-28.50=99
You might be interested in
Write the equation of the line passing through the points (−2,3) and (−1,−2) in Slope-Intercept and Point-Slope Form.
Annette [7]
Point slope form is y-3 = -5( x + 2 )

Slope intercept form is y= -5x - 7

5 0
2 years ago
g For the curve parameterized by x(t) = 3 sin t, y(t) = 5 cost, for −π/4 ≤ t ≤ π/2: (a) Sketch the curve and the direction trace
tamaranim1 [39]

Answer:

a) See the file below, b) s = \int\limits^{0.5\pi}_{-0.25\pi} {[\left( 3\cdot \cos t\right)^{2}+\left(-5\cdot \sin t \right)^{2}]} \, dx, c) s \approx 9.715

Step-by-step explanation:

a) Points moves clockwise as t increases. See the curve in the file attached below. The parametric equations describe an ellipse.

b) The arc length formula is:

s = \int\limits^{0.5\pi}_{-0.25\pi} {[\left( 3\cdot \cos t\right)^{2}+\left(-5\cdot \sin t \right)^{2}]} \, dx

c) The perimeter of that arc is approximately:

s \approx (\frac{1}{4} + \frac{1}{8})\cdot 2 \pi\cdot \sqrt{\frac{3^{2}+5^{2}}{2} }

s \approx 9.715

5 0
3 years ago
an observer on a cliff 1200 feet above sea level sights two ships due East. The angle of depression to the shops are 48° and 33°
ziro4ka [17]
See the attached figure to better understand the problem

we know that
in the triangle ABC
tan 48°=AB/AC--------> AC=AB/tan48°------> 1200/tan 48°------> 1080.48 ft

in the triangle ABD
tan 33°=AB/AD---------> AD=AB/tan 33°-----> 1200/tan 33°------> 1847.88 ft

<span>the distance between the ships is AD-AC---> 1847.88-1080.48----> 767.4 ft

the answer is 
</span>the distance between the ships is 767.4 ft<span>

</span>

4 0
3 years ago
Find the 6th term of a geometric sequence t3 = 444 and t7 = 7104. So I have to find r. But is this right: 7104 = 444r^4 r^4 = 16
galben [10]

Third term = t3 = ar^2 = 444           eq. (1)

Seventh term = t7 = ar^6 = 7104         eq. (2)

By solving (1) and (2) we get,

              ar^2 = 444    

                => a = 444 / r^2       eq. (3)

And  ar^6 = 7104

 (444/r^2)r^6 = 7104

 444 r^4 = 7104

 r^4 = 7104/444

            = 16

 r2 = 4

 r = 2

Substitute r value in (3)

                         a = 444 / r^2

                             = 444  / 2^2

                             = 444 / 4

                              = 111

Therefore a = 111 and r = 2

Therefore t6 = ar^5

                       = 111(2)^5

                       = 111(32)

                       = 3552.

<span>Therefore the 6th term in the geometric series is 3552.</span>

8 0
3 years ago
Studies showed that a driver with a blood alcohol level of 0.15% has_____ times greater chance of causing an accident.
Debora [2.8K]

Answer:

25

Step-by-step explanation:

8 0
2 years ago
Other questions:
  • The larger of two numbers is less than twice the smaller number.if the sum of two numbera is 38,find the sum of the two numbers
    11·1 answer
  • the scatter plot shows the number of students per class al monida middle school and the number of magazine subscription each cla
    8·2 answers
  • Lenny Lendee purchased a snowblower for $199.95. He paid 25% down and agreed to pay $14.99 for 12 months.
    5·1 answer
  • Which expression re presents the volume of a cube whose edge length is 60 units
    10·2 answers
  • Please help I'll mark you as brainiest
    7·2 answers
  • Need help asap<br> will give brainly
    8·2 answers
  • What is the following quotient? StartFraction 6 minus 3 (RootIndex 3 StartRoot 6 EndRoot) Over RootIndex 3 StartRoot 9 EndRoot E
    5·1 answer
  • The average price for bottled water decreased by 25% between last year and this year. If the average price of bottled water is n
    14·2 answers
  • Find the equation of a line perpendicular to y=−6 that contains the point (1,3). Write the equation in slope-intercept form
    6·1 answer
  • A. The graph is translated 2units down.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!