Answer:
$24.36 for the bookbag if they tax the original price
$23.97 if they tax the sales price
$31.10 for the necklace if they tax the original price
$30.60 if they tax the sales price
So an overall of $55.46 was spent for a taxing of the original price and an overall of $54.57 was spent for the taxing of the sales price.
Step-by-step explanation:
20% of $28.00 is $6.60, subtract $6.60 from $28.00 and you'll get $22.40.
7% of $28.00 is $1.96, add $1.96 to $22.40 and you'll get $24.36 (for taxing of the original price). If you want the taxing of the sales price then you'd do 7% of 22.40 which is $1.57, add that to $22.40 and you get $23.97
Then you do the same for the necklace:
20% of $35.75 is $7.15, subtract $7.15 from $35.75 and you'll get $28.60.
7% of $35.75 is $2.50, add $2.50 to $28.60 and you'll get $31.10 (for taxing of the original price). If you want the taxing of the sales price then you'd do 7% of 28.60 which is $2.00, add that to $28.60 and you get $30.60
Add the final numbers and you'll get your overall.
Hope this helps
Answer:
Doc drove the fastest.
Step-by-step explanation:
The first thing you want to do is figure out how many milese they are traveling per hour.<em><u> We know that Einstein has these two time stamps (hour/miles) ; 3/240 and 4/320. </u></em>
so divide the hour by the number of miles:
3÷240=80
just to make sure I did the four hour one as well;
4÷320=80
Do the same thing for doc and marty!
<h2><u><em>Doc </em></u></h2>
4÷340=85
<h2><u><em>
Marty</em></u></h2>
4÷100=0.04
The answer that you get from the division problems is the number of miles that they travel each hour.
Hope this helps!
<h2 />
Answer:
V = 27.16inch^3
Step-by-step explanation:
Find the radius = 8/2 = 4
V=4/3 π r3
V=4/3 π * 4 x 4 x 4
V=4/3 π * 64
V = 4/3 π = 0.42441318157 = π +1/3 Take this and multiply to 64
0.42441318157 x 64 = 27.1624436205 = 27.162444
V = 27.16inch^3
Answer:
72
Step-by-step explanation:
The two digit number can be represented by xy, where x and y must add to 9 and x - y must subtract to 5. Make a system of equations.
Use the elimination method and add the terms from top to bottom like so. The y and -y cancel out.
2x = 14
Divide both sides by 2.
x = 7
Substitute 7 for x into the first equation (either eqn would work).
(7) + y = 9
Subtract 7 from both sides.
y = 2
Combine these two together; xy --> (7)(2) --> 72.
The number is 72.