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horrorfan [7]
2 years ago
12

Steve buys a shirt for 21$ plus an 8% tax. Matt buys a shirt at another store forb18$ plus an 8% tax. Enter the different in the

amount Steve and Matt paid, including tax . Round your answer to the nearest cent
Mathematics
1 answer:
olga55 [171]2 years ago
3 0

Answer:

$0.24

Step-by-step explanation:

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When measuring the length a and the width b of a rectangle, it was found that 5.4< a< 5.5 and 3.6< b< 3.7 (in centim
leva [86]

Answer:

The possible values of the perimeter of the rectangle is between 18 and

18.4 cm ⇒ [18 < perimeter of rectangle < 18.4] cm

Step-by-step explanation:

* Lets explain how to solve the problem

- The perimeter of any quadrilateral is the sum of the length of its

  four sides

- The rectangle is a quadrilateral with each two opposite sides are

  equal in lengths, then its perimeter = 2l + 2w, where l, w are its

  length and width

∵ The the length of the rectangle is a

∵ 5.4 < a < 5.5 cm

∵ The perimeter of the rectangle = 2a + 2b

- Lets multiply the inequality by 2

∴ 5.4 × 2 < a × 2 < 5.5 × 2

∴ 10.8 < 2a < 11 ⇒ (1)

∵ The width of the rectangle is b

∵ 3.6 < b < 3.7 cm

- Lets multiply the inequality by 2

∴ 3.6 × 2 < b × 2 < 3.7 × 2

∴ 7.2 < 2b < 7.4 ⇒ (2)

- <u><em>Add inequalities (1) and (2)</em></u>

∵     10.8 < 2a < 11

  +   7.2 < 2b < 7.4

∴  18 < 2a + 2b < 18.4

∵ 2a + 2b represents the perimeter of the rectangle

∴ The possible values of the perimeter of the rectangle is between

  18 and 18.4 cm ⇒ [18 < perimeter of rectangle < 18.4] cm

7 0
3 years ago
Plss help I’ll give brainlist or what ever it’s called
Pachacha [2.7K]
1/4 i think hope that helps
3 0
3 years ago
Read 2 more answers
A school assembly had 70 students in attendance, and 90% of them were first-graders. How many first-graders were at the assembly
natulia [17]

Answer:

63

Step-by-step explanation:

Because, 100% of 70 would be 7. Now we have that number lets multiply it by 9 because of 90%. 9 x 7 = 63 first-graders

4 0
2 years ago
Please help I don’t understand
Sauron [17]

Answer:

-1.96312>-2.2360

Step-by-step explanation:

first find -\sqrt{5}\\

which is -2.2360679775

now round it to match the lenth of the other problem

-1.96312...

-2.2360...

now remember that the bigger the negitive number, the smaller it really is,

so

-1.96312>-2.2360

7 0
2 years ago
Read 2 more answers
marlene is painting square tiles for a project.each tile has a perimeter of 16 in.what is the length of each side.
elixir [45]

Answer:

64 i hope im right

Step-by-step explanation:

5 0
2 years ago
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