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
dusya [7]
3 years ago
14

Johnny Macs Sporting Goods bought a baseball glove from Rawlings Sporting Goods for $66.00. They want to mark up the glove 70% o

n selling price. What should Johnnys sell the glove for? I got 112.20, but answer is incorrect. HELP!
Mathematics
1 answer:
amm18123 years ago
8 0
<span>Your answer seems perfectly logical in the world of math. Unfortunately, the world of retail sales calculates markup percentage differently. If a remember correctly, the markup percentage is based upon the final price. Try the following: X is the final selling price. So X minus 70% of X is equal to $66.00 : X-(0.7X)=66, 0.3X=66, 66/0.3=X, X=220

Was $220.00 one possible answer?</span>
You might be interested in
Find the area of trapezoid JKLM. Round the answer to the nearest tenth.
maksim [4K]

from the diagram, we can see that the height or line perpendicular to the parallel sides is 8.5.

likewise we can see that the parallel sides or "bases" are 24.3 and 9.7, so

\textit{area of a trapezoid}\\\\ A=\cfrac{h(a+b)}{2}~~ \begin{cases} h=height\\ a,b=\stackrel{parallel~sides}{bases}\\[-0.5em] \hrulefill\\ h=8.5\\ a=24.3\\ b=9.7 \end{cases}\implies \begin{array}{llll} A=\cfrac{8.5(24.3+9.7)}{2}\\\\ A=\cfrac{8.5(34)}{2}\implies A=144.5~in^2 \end{array}

5 0
2 years ago
Use Stokes' Theorem to evaluate C F · dr F(x, y, z) = xyi + yzj + zxk, C is the boundary of the part of the paraboloid z = 1 − x
Serggg [28]

I assume C has counterclockwise orientation when viewed from above.

By Stokes' theorem,

\displaystyle\int_C\vec F\cdot\mathrm d\vec r=\iint_S(\nabla\times\vec F)\cdot\mathrm d\vec S

so we first compute the curl:

\vec F(x,y,z)=xy\,\vec\imath+yz\,\vec\jmath+xz\,\vec k

\implies\nabla\times\vec F(x,y,z)=-y\,\vec\imath-z\,\vec\jmath-x\,\vec k

Then parameterize S by

\vec r(u,v)=\cos u\sin v\,\vec\imath+\sin u\sin v\,\vec\jmath+\cos^2v\,\vec k

where the z-component is obtained from

1-(\cos u\sin v)^2-(\sin u\sin v)^2=1-\sin^2v=\cos^2v

with 0\le u\le\dfrac\pi2 and 0\le v\le\dfrac\pi2.

Take the normal vector to S to be

\vec r_v\times\vec r_u=2\cos u\cos v\sin^2v\,\vec\imath+\sin u\sin v\sin(2v)\,\vec\jmath+\cos v\sin v\,\vec k

Then the line integral is equal in value to the surface integral,

\displaystyle\iint_S(\nabla\times\vec F)\cdot\mathrm d\vec S

=\displaystyle\int_0^{\pi/2}\int_0^{\pi/2}(-\sin u\sin v\,\vec\imath-\cos^2v\,\vec\jmath-\cos u\sin v\,\vec k)\cdot(\vec r_v\times\vec r_u)\,\mathrm du\,\mathrm dv

=\displaystyle-\int_0^{\pi/2}\int_0^{\pi/2}\cos v\sin^2v(\cos u+2\cos^2v\sin u+\sin(2u)\sin v)\,\mathrm du\,\mathrm dv=\boxed{-\frac{17}{20}}

6 0
3 years ago
Which of the following sets is NOT closed under addition.
Veronika [31]

Answer:

Step-by-step explanation:

The odd numbers.

Suppose you have 31 and 27 when you add these two together, you get 58 which is not an odd number.

If you need a more mathematical proof, you could do it this way.

2x+1

2x is even. Anything multiplied by 2 is even. When you add 1 you get an odd number

So continue on

2y + 1 is the other number.

2x + 1 + 2y + 1 = 2(x + y) + 2

2 (x + y ) is even. When you add 2 to it, nothing changes. The result is still even.

7 0
3 years ago
Ill in the blank with the correct number:
kakasveta [241]

Answer:

88.56 with tax included

8 0
2 years ago
5 (P-4)=2<br><br>This problem is also hard for me:'(​
shusha [124]

Answer:

.............

Step-by-step explanation:

...............

7 0
3 years ago
Read 2 more answers
Other questions:
  • How do I remember measurements? From Pints to Quarts?
    11·2 answers
  • Which figures can be precisely defined by using only undefined terms
    11·1 answer
  • Solve for the variable: 12.9 = x + 7.1 5.8 -5.8 20 -20
    11·1 answer
  • Use the table to find the slope.<br><br><br> -2<br><br><br> 2<br><br><br> 1/2<br><br><br> -1/2
    6·1 answer
  • What is the complete factorization of the polynomial below?
    15·1 answer
  • What is the area of this trapezoid 5in 4in 3in 2in
    8·1 answer
  • Eva is picking fruit at a farm. The fees are $5 for entry to the farm, $2.50 per pound of blueberries, and $2 per pound of apple
    10·2 answers
  • mrs. sing bought a pound of green beans for $1.80. How much will Msr. Tennison pay for 3 1/2 pounds of green beans?​
    14·1 answer
  • 9. Which is a solution of the equation 5(x – 8) = -55 ?
    7·1 answer
  • Can anyone help me on this please
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!