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3 years ago

Notebooks cost $ 1.20 each. This weekend they will be on sale for $ 0.80. What percentage is the sale

Mathematics

2 answers:

myrzilka [38]3 years ago

8 0

If you mean what was the percentage of how much lower it got, I think about 32%. Somewhere around there

Schach [20]3 years ago

6 0

So sale is x% off
find how much was taken off
1.20-0.80=0.40

so find what 0.4 out of 1.20 is
0.4/1.2=4/12=1/3=33.33%

so the sale is 33.33% off

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A rectangular piece of metal is 25 in longer than it is wide. Squares with sides 5 in long are cut from the four corners and the

Licemer1 [7]

Answer:

The original length was 41 inches and the original width was 16 inches

Step-by-step explanation:

Let

x ----> the original length of the piece of metal

y ----> the original width of the piece of metal

we know that

When squares with sides 5 in long are cut from the four corners and the flaps are folded upward to form an open box

The dimensions of the box are

$L=(x-10)\ in\\W=(y-10)\ in\\H=5\ in$

The volume of the box is equal to

$V=(x-10)(y-10)5$

$V=930\ in^3$

$930=(x-10)(y-10)5$

simplify

$186=(x-10)(y-10)$ -----> equation A

Remember that

The piece of metal is 25 in longer than it is wide

$x=y+25$ ----> equation B

substitute equation B in equation A

$186=(y+25-10)(y-10)$

solve for y

$186=(y+15)(y-10)\\186=y^2-10y+15y-150\\y^2+5y-336=0$

Solve the quadratic equation by graphing

using a graphing tool

The solution is y=16

see the attached figure

Find the value of x

$x=16+25=41$

therefore

The original length was 41 inches and the original width was 16 inches

3 0

3 years ago

What is the input value for the following function if the output value is 5?

Minchanka [31]

The answer is 25, leave a like (:

4 0

3 years ago

1. Given a regular octagon, find the measures of the angles formed by (a) two consecutive radii and (b) a

Fed [463]

A ) The angle formed by 2 consecutive radii:
Ф= 360° : 8 = 45°
b ) The angle formed by a radius and a side of a polygon:
α = (180° - 45°): 2 = 135° : 2 = 67.5°
Answer:
B ) 45°, 67.5°

4 0

3 years ago

Triangle ABC is similar to triangle DEF.

Sav [38]

Answer: x=7.7, y=40

3/x = 15/38.5

38.5*3=115.5

115.5/15= 7.7

x=7.7

3/8 = 15/y

15*8=120

120/3= 40

y=40

orrrr you can just easily find the scale factor which is 5, multiply 8 by 5 and get 40. And 38.5/5 which is 7.7

7 0

2 years ago

How many 11-player soccer teams can be formed from 16 total players?

Contact [7]

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▹ Answer

▹ Step-by-Step Explanation

16 ÷ 11 = 1 R 5

1 team can only be formed since you have 16 players. You would need 22 players to form another team, since each team has 11 players.

Hope this helps!

- CloutAnswers ❁

Brainliest is greatly appreciated!

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5 0

3 years ago