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
Ainat [17]
2 years ago
6

A laptop is 30% off the regular price of 920$ If a 6% sales tax is added to the cost what is total cost of the laptop

Mathematics
1 answer:
Lunna [17]2 years ago
7 0

Answer

If we had a sale price of 30% off of $1,050then the sale price is 70% of $1,050 or 0.7(1050) Then we add 7% sales tax to that making thefinal price paid 107% of [0.7(1050)] ... 1.07[0.7(1050)] = $786.45

You might be interested in
write the first six terms of the arithmetic sequence with the first term a1 =90 , and common differnce, d=9​
brilliants [131]
Given a1 = 90
Common difference = adding
90 + 9 = 99, second term
99 + 9 = 108, third term
And keep doing that
You would get
90, 99, 108, 117, 126, 135
8 0
3 years ago
Write a story problem for the addition sentence 7 +__=9.solve the story problem.
leva [86]
Katelan has 9 friends as guests for a costume party. Katelan is elaborating carnival masks for them. So far , she has made 7 masks. How much more masks is Katelan left to do?

Answer: Katelan has 2 masks left to do . Because 7 (plus) 2 is 9.
6 0
3 years ago
Read 2 more answers
I need to know what to do
Vadim26 [7]

Answer:

210000*1.125^t=f(t)


7 0
2 years ago
Evaluate the integral by making an appropriate change of variables.
VARVARA [1.3K]

By inspecting the integrand, the "obvious" choice for substitution would be

<em>u</em> = <em>y</em> + <em>x</em>

<em>v</em> = <em>y</em> - <em>x</em>

<em />

Solving for <em>x</em> and <em>y</em>, we would have

<em>x</em> = (<em>u</em> - <em>v</em>)/2

<em>y</em> = (<em>u</em> + <em>v</em>)/2

in which case the Jacobian and its determinant are

J=\begin{bmatrix}x_u&x_v\\y_u&y_v\end{bmatrix}=\dfrac12\begin{bmatrix}1&-1\\1&1\end{bmatrix}\implies|\det J|=\left|\dfrac12\right|=\dfrac12

The trapezoid <em>R</em> has two of its edges on the lines <em>x</em> + <em>y</em> = 8 and <em>x</em> + <em>y</em> = 9, so right away, we have 8 ≤ <em>u</em> ≤ 9.

Then for <em>v</em>, we observe that when <em>x</em> = 0 (the lowest edge of <em>R</em>), <em>v</em> = <em>y</em> ; similarly, when <em>y</em> = 0 (the leftmost edge of <em>R</em>), <em>v</em> = -<em>x</em>. So

-<em>x</em> ≤ <em>v</em> ≤ <em>y</em>

-(<em>u</em> - <em>v</em>)/2 ≤ <em>v</em> ≤ (<em>u</em> + <em>v</em>)/2

-<em>u</em> + <em>v</em> ≤ 2<em>v</em> ≤ <em>u</em> + <em>v</em>

-<em>u</em> ≤ <em>v</em> ≤ <em>u</em>

<em />

So, the integral becomes

\displaystyle\iint_R5\cos\left(7\frac{y-x}{y+x}\right)\,\mathrm dA=\int_8^9\int_{-u}^u\frac52\cos\left(\frac{7v}u\right)\,\mathrm dv\,\mathrm du

=\displaystyle\frac52\int_8^9\frac u7(\sin7-\sin(-7))\,\mathrm du

=\displaystyle\frac57\sin7\int_8^9u\,\mathrm du

=\displaystyle\frac5{14}\sin7(9^2-8^2)=\boxed{\frac{85}{14}\sin7}

4 0
2 years ago
What is the volume of the prism that can be constructed from this net?
Alecsey [184]
That would make a rectangular prism with measurements of:

Length = 9
Width = 4
Height = 10

V = lwh

V = 9 * 4 * 10

V = 360
7 0
2 years ago
Read 2 more answers
Other questions:
  • There are 8 dinner rolls in a package.
    7·2 answers
  • Solve equation 66= -11y
    12·2 answers
  • the diagram shows a star made by surrounding a regular octagon with triangles, explain why angle a must be 135 degrees
    12·1 answer
  • How do I solve log(2)t^3-1=-3?
    11·1 answer
  • Which one is it?<br> will mark brainliest only if correct
    10·1 answer
  • Please I need help with this ASAP
    11·1 answer
  • Find the exact value
    11·1 answer
  • Drag and drop the constant of proportionality into the box to match the table.
    12·1 answer
  • Graph thee line that represents this equation:<br>y+2=1/2(x+2)​
    11·1 answer
  • Use Structure A line passes through points Aln, 4) and B(6, 8) and is parallel to y = 2x - 5. What is the value of n?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!