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3 years ago

10

zoe paid $18.60 in sales tax and tips for her dinner. The sales tax rate is 11%, and she tipped 20%. (the sales tax does not app

ly to the tip, and the tip is based on the price of the dinner before sales tax.)

1 answer:

arsen [322]3 years ago

5 0

Answer:

$13.97 was the price of the dinner b4 tax and tip

Step-by-step explanation:

18.60 - 11% (1.84) = 16.76

16.76 - 20%(2.79) = 13.97

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Please answer these questions:

baherus [9]

Answer

1• 2/5÷7/8

if there is a division sign in between two fractions what u have to do is multiply and, the fraction at the right need to change

=2/5×8/7

=16/35

=0•457

2• 3/4÷6/5

=3/4×5/6
18/24
=0.75

3• 3/5÷7/8

=3/5×8/7

=24/35

=0•6857

4• 3/4÷5/6

=3/4×6/5

=18/20

=0•9

8 0

3 years ago

Elena needs to cut a square piece of wood with an area of 7 square inches. How long should the sides of the square be, rounded t

Artemon [7]

3.5 because you take 7 and divide by 2 since you have to multiply you base times width to get area I think I might be wrong

4 0

3 years ago

4(5x-6)=2(8x+10) how to solve

Pavel [41]

Hello! :)

Answer:

$\boxed{X=11}$

*The answer must have a POSITIVE sign!*

Step-by-step explanation:

Expand with distributive property: a(b+c)=ab+ac

4*5=20

6*4=24

20x-24

2*8=16

2*10=20

16x+20

20x-24=16x+20

First, you add by 24 both sides of an equation.

20x-24+24=16x+20+24

20x=16x+44

You subtract by 16x both sides of an equation.

20x-16x=16x+44-16x

4x=44

Then, you divide by 4 both sides of an equation.

4x/4=44/4

Divide by the numbers from left to right.

44/4=11

<u><em>X=11 is the final answer</em></u>

Hope this helps!

Have a nice day! :)

:D

-Charlie

Thanks!

4 0

3 years ago

If the cost, C(x), for manufacturing x units of a certain product is given by

Diano4ka-milaya [45]

Answer:

99 units.

Step-by-step explanation:

The cost function for manufacturing <em>x</em> units of a certain product is:

$C(x)=x^2-15x+34$

We want to find the number of units manufactured at a cost of $8350. Therefore:

$8350=x^2-15x+34$

Subtract 8350 from both sides:

$x^2-15x-8316=0$

This equation can be a bit difficult to factor, if even possible, so we can use the quadratic formula:

$\displaystyle x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

In this case, a = 1, b = -15, and c = -8316. Thus:

$\displaystyle x=\frac{-(-15)\pm\sqrt{(-15)^2-4(1)(-8316)}}{2(1)}$

Simplify:

$\displaystyle x=\frac{15\pm\sqrt{33489}}{2}$

Evaluate:

$\displaystyle x=\frac{15\pm183}{2}$

Therefore, our solutions are:

$\displaystyle x=\frac{15+183}{2}=99\text{ and } x=\frac{15-183}{2}=-84$

We cannot produce negative items, so we can ignore the second answer.

Therefore, for a cost of $8350, 99 items are being produced.

5 0

3 years ago

Pleaseeeeeeee help meee

galben [10]

Answer:

11

Step-by-step explanation:

sorry if I got it wrong but from what I understand it is 11

6 0

3 years ago