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lianna [129]
3 years ago
13

Elaine lives in Hawaii, which has a sales tax of 4%. She just bought a swimsuit whose full price was $80, but she presented the

retailer with a coupon for $15, which the retailer accepted. What was the total amount that Elaine paid?
A. $67.60

B. $68.20

C. $83.20

D. $65.00
Mathematics
2 answers:
Andrew [12]3 years ago
4 0

Answer:

A : $67.60

Step-by-step explanation:

Given:

Sales tax = 4%

She just bought a swimsuit whose full price was $80,

She presented the retailer with a coupon for $15,

Question asked:

What was the total amount that Elaine paid?

Cost price of  swimsuit = $80,

She presented the retailer with a coupon for = $15,

Remaining price = 80 - 15 = 65

Now, sale tax imposed = 4% of 65

                                      = \frac{4}{100} \times65 = \frac{ 260}{100}  = 2.6

Sale price = Remaining price after deducting coupon + sale tax

                 =  65 + 2.60 = 67.60

Thus , $67.60 Elaine paid to the retailer.

julsineya [31]3 years ago
3 0

Answer:

68.20

Step-by-step explanation:

I took the test and that was the answer

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Javier went to the zoo today and saw 161616 monkeys. That is 333 fewer than he saw last Saturday. How many monkeys did Javier se
coldgirl [10]
So the total amount he saw today was 333 less than what he saw last time. Which means last time there was 333 more monkeys

Last sat he saw 161,949 monkeys
4 0
3 years ago
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A zoo has a total of 8 lions and tigers. the number of tigers are one less than twice the number of lions. write a system of equ
babunello [35]
<h2>L+T = 8</h2><h2>T = 2L -1</h2>

Step-by-step explanation:

Let the number of lions be represented by L

Let the number of tigers be represented by T

<u>A zoo has a total of 8 lions and tigers</u><u> </u><u>:</u>

<u>L + T= 8</u>

<u>Th</u><u>e number of tigers are one less than twice the number of lions.</u><u> </u><u>:</u>

T = 2L -1

6 0
3 years ago
A liner function of x is graphed on a coordinate grid. the points 6,34 and 18,26 lie on the graph of the function what are the r
Lynna [10]

Answer:

Rate of change: m = -2/3

Value of the function at x = 24: y = 22

Step-by-step explanation:

You can write linear functions in <u>slope-intercept form</u>: y = mx + b

"x" and "y" are points on the line

"m" is the slope, how steep the line is, also known as <u>rate of change</u>

"b" is the y-intercept, when the graph hits the y-axis

Find the rate of change of the function by finding the slope between the two given points.

The formula for slope: m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

Label point 1 and point 2. Label each coordinate; remembered ordered pairs are (x, y).

Point 1      (6, 34)         x₁= 6   y₁ = 34

Point 2     (18, 26)        x₂ = 18   y₂ = 26

Substitute the points into your equation using the bolded information.

m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

=\frac{26-34}{18-6}       Subtract

=\frac{-8}{12}             Reduce the fraction. Top and bottom divide by 4

=\frac{-2}3}              Slope of the line, "m"

Substitute the slope and any point you want into slope-intercept form. I choose point (6, 34). x = 6    y = 34   m = -2/3

y = mx + b

34 = (-2/3)(6) + b                      Multiply to simplify

34 = (-12/3) + b

Start isolating "b"

34 + 12/3 = (-12/3) + 12/3 + b              Add 12/3 on both sides

34 + 12/3 = b

Add fractions by combining the whole number into the numerator. Multiply the whole number by the denominator and add to the numerator.

b = (34*3 + 12) / 3              Solve numerator

b = 114/3                      Value of "b"

Substitute the values "m" and "b" into slope-intercept form.

y = -2/3 x + 114/3                  Equation of the line

To find the x = 24, take the equation of the line and substitute "x" for 24. Then solve for "y".

y = -2/3 x + 114/3                       Equation of the line

y = (-2/3)(24) + 114/3

y = (-2*24)/3  + 114/3                     Multiply into the numerator

y = (-48)/3 + 114/3                       Combine under the same denominator

y = (-48 + 114) / 3                      Add

y = 66/3                        Divide

y = 22                      Value of function

Therefore the rate of change, or slope "m", is -2/3. When "x" is 24, the value of the entire function is 22.

4 0
3 years ago
Determine whether the graphs of the pair if lines are parallel. x+12=y , y-x=-8
True [87]
Y = x + 12
-x + y = -8

        -x + y = -8
-x + x + 12 = -8
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The lines are parallel.
6 0
3 years ago
Please help !! Picture provided !!!
adelina 88 [10]
Method One
Your calculator might be able to do this. Mine does it like this.
6
nCr
2  
= 
15

Method 2
You could simply set up 6C2

This gives you
\frac{n!}{(n- r)! r!} =  \frac{6!}{(6 - 2)!2!} =  \frac{6!}{4! 2!} =  \frac{6*5}{2*1} = 15

Method Three
You only have to do this a couple of times to see how the cancellation works.

\frac{6!}{4!2!} =  \frac{6*5*\st{4*3*2*1}}{4*3*2*1 * 2*1}
After all the cancellation takes place you have
6*5/2 = 15
7 0
3 years ago
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