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ziro4ka [17]
3 years ago
9

Help please & Thankyouu if you don’t mind would really appreciate it!

Mathematics
1 answer:
Snezhnost [94]3 years ago
7 0

Answer:

{ \tt{area =  \frac{1}{2}h(a + b) }} \\  =  \frac{8}{2} (10 + 15) \\  \\ { \tt{area = 100 \:  {cm}^{2} }}

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The price of a notebook was $3.75 yesterday. Today, the price fell to $3.50. Find the percentage decrease. Round your answer to
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It is a 6.7% decrease.

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A watch cost 75.99. If the sales tax rate is 6.25 percent, what is the amount of sales tax. Plus, please show your work.
rusak2 [61]
So the watch costs 75.99 including sales tax.

The sales tax is 6.25% of the value of the watch.

100% of the value of the watch is n.

100% + 6.25% of the value of the watch is 106.25/100 * n = 75.99

Let's calculate the sales tax...

\frac { 106.25 }{ 100 } \cdot n=75.99\\ \\ 106.25\cdot n=7,599\\ \\ n=\frac { 7,599 }{ 106.25 }

\\ \\ =71.52\\ \\ Sales\quad Tax\quad is\quad Therefore:\\ \\ 75.99\quad -\quad 71.52\quad =\quad 4.47
7 0
3 years ago
Are the points on the boundary line part of the<br> solution set or not?
Dmitry [639]

Answer:

yes

Step-by-step explanation:

8 0
3 years ago
A bicycle wheel has a circumference of 62 inches. Find the diameter of the wheel. If necessary, round to the tenths place. A. 39
san4es73 [151]

Answer:

The answer to your question is        diameter  = 19.7 in

Step-by-step explanation:

Data

Circumference = 62 in

diameter = ?

Process

1.- Write the formula of Circumference, remember that circumference = perimeter.

    Perimeter = 2πr

2.- Equal the equation to the value given

                        2πr = 62

-Solve it for r

                            r = 62/2(3.14)

-Result

                           r = 62/6.28

                           r = 9.87 in

3.- Find the diameter

             diameter = 2r

             diameter = 2(9.87)

             diameter  = 19.7 in

4 0
3 years ago
Read 2 more answers
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