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svlad2 [7]
3 years ago
6

What is the percent decrease between 80 and 64

Mathematics
2 answers:
vodka [1.7K]3 years ago
8 0
80-64/80 x 100 = 20%

Ans : 20%
Genrish500 [490]3 years ago
8 0

we know that

The number 80 represent the 100%

<u>Find the percentage of the number 64</u>

by proportion

\frac{80}{100}   =\frac{64}{x}  \\\\    80*x=64*100

x=\frac{64*100}{80}

x=80%

<u>Find the percentage decrease</u>

Percentage decrease=100-80=20%

therefore

<u>the answer is</u>

The percentage decrease is equal to 20%

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Write the equation of the line in slope-intercept form Slope=5/3 Y-Intercept=4
Eddi Din [679]

Answer:

\sf y=\dfrac{5}{3}x+4

Step-by-step explanation:

<u>Given:</u>

<u />\textsf{slope of $\dfrac{5}{3}$, and a y-intercept of $4$}

⇒ Slope-Intercept Form: y = mx + b

<u>where:</u>

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Substitute the given values:

\sf\\ \implies y=mx+b\\\\\implies y=\dfrac{5}{3}x+4

Learn more here:

brainly.com/question/27803801

7 0
2 years ago
Read 2 more answers
Please help me. i want to have this finished.
Anuta_ua [19.1K]
We know that y is equal to x-2. We can just substitute x-2 for y since y is equal to it. 

10x- 9(x-2)=24

Distribute.

10x- 9x+18= 24

x+18= 24

Subtract 18 on both sides.

x= 6

Now, plug in x.

y= (6)-2

y= 4

We can check this to see if this works:

4= 6-2, 4=4 

10(6)- 9(4)= 24

60-36= 24, 24=24

x=6 and y=4

I hope this helps!
<em>~kaikers</em>
5 0
3 years ago
Which of the following quadrilaterals have diagonals that bisect each other?
Taya2010 [7]

Answer:

All A. B. C. D.

Step-by-step explanation:

7 0
3 years ago
1 ) Tim earns $12.50 an hour cleaning houses. If he works from 8:00am to 2:00pm,
AVprozaik [17]

Answer:

$75

Step-by-step explanation:

First, we will find how many hours he worked. 8:00-12:00 is 4 hours, and 12:00-2:00 is 2 hours, so he worked a total of 6 hours.

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Answer:

D.) It has rotational symmetry with an angle of rotation of 90 degrees.

Step-by-step explanation:

i) the shape shown in the figure has reflectional symmetry with four lines of symmetry. There are four lines of symmetry such that each line when drawn divides the shape into two exact halves such that if each half were too be folded across the line of symmetry it would produce the other half exactly.

Therefore Option A.) and Option B.) are not true

ii) It has  point symmetry which means if the shape is rotated by 180 degrees the shape does not change. Therefore Option C.) is not true.

iii) the shape has rotational symmetry because if the shape is rotated though any between 0 degrees and 360 degrees the shape appears to be unchanged.

Therefore the correct options are

D.) It has rotational symmetry with an angle of rotation of 90 degrees.

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