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Llana [10]
3 years ago
13

Shelly wanted to buy a shirt for $25 and a skirt for $20.When she got to the check out stand, they added 8% tax to her total. Ab

out how much tax did she pay?
Mathematics
1 answer:
Verizon [17]3 years ago
5 0

Answer:

$3.60

Step-by-step explanation:

25+20=45 (because you need the tax of both)

0.8(45)=3.60 (finding the tax amount)

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In a local city, the temperature at noon is -3C The temperature is expected to decrease by 2.5C each hour until the temperature
LiRa [457]

Writing the equation that governs this situation:


-3C - (2.5C/hr)x = -18C


Simplifying, -3 - 2.5x = -18, or 3 + 2.5x = 18


Combining like terms: 2.5x = 18-3 = 15


Then x = 15/2.5 = 6. The temp. will reach -18C after 6 hours.

7 0
3 years ago
Read 2 more answers
the expression 6 to the 3rd power times 4 to the 2nd power is equivalent to which of the following numerical expression
fenix001 [56]
216 times 16

6^3 is 216 and 4^2 is 16
5 0
3 years ago
A regular hexagon with side length 4 has the same area as a square. What is the length of the square?
svetlana [45]

Answer: The length of the square is 6.44

Step-by-step explanation:

By definition, the area of a Regular polygon can be calculated with the following formula:

A=\frac{s^2n}{4tan(\frac{180}{n})}

Where "s" the length of any side of the polygon and "n" is the number of sides .

According to the information given in the exercise, you know that:

s=4

Since an hexagon has six sides, you know that:

n=6

Therefore, its area is:

A_h=\frac{(4^2)(6)}{4tan(\frac{180}{6})}\\\\A_h=24\sqrt{3}

The formula to find the area of a square is:

A=s^2

Where "s" is the length of any side of the square.

Since that regular hexagon has the same area as this square, you can substituting the area calculated above into the formula for calculate the area of a square, and then solve for "s".

Then you get:

24\sqrt{3}=s^2\\\\\sqrt{24\sqrt{3}}=s\\\\s=6.44

7 0
3 years ago
3(-4x + 8)= rewrite as expression
Lerok [7]

Answer:

-12x+24

Step-by-step explanation:

3(-4x+8)

multiply 3 by each part so 3(-4x) + 3(8)

-12x+24

6 0
2 years ago
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The ratio of boys to girls at the assembly was 5 to 4. If there were 180 students at the assembly, how many girls were there? Ex
Eva8 [605]
Boys to girls ratio - 5 to 4.
5 + 4 = 9.
180 divided by 9 equals 20.
20 times 4 equals 80.
5 0
2 years ago
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