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Fudgin [204]
2 years ago
9

If 300% of 0.18 is equivalent to 20% of b, then b is equivalent to what number?

Mathematics
2 answers:
mote1985 [20]2 years ago
5 0

Answer:

b= 27    5 (0.54) regardless makes 2.7 x 100 =27 where 300% of 0.18 =0.54  

Step-by-step explanation:

We need a number that is 20% of b and equal to 5.4

To find 0.54 (= 20% )we can use fractions for percentages 20%= 1/5 or 2.70 thereafter as we do not work in decimals if no fraction in mentioned we get b= 26 and 20% of this is 5.2. Then plug in as above where the answer is   5 (0.54) regardless makes 2.7 x 100 =27 where 300% of 0.18 =0.54  but plug in fractions instead.

tatiyna2 years ago
3 0

Answer:

2.7

Step-by-step explanation:

3*0.18=0.54

0.54/0.2=2.7

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Find a line that lies entirely in the set defined by the equation x2 + y2 − z2 = 1.
RUDIKE [14]

Answer:

x=1\,,\,y=t\,,\,z=t

Step-by-step explanation:

A line is a one-dimensional figure that has no thickness and extends infinitely in both directions.

A line segment is a line that has two end-points and a ray is a line that has one end-point.

Given equation is x^2+y^2-z^2=1

To find : a line that lies entirely in the set defined by the given equation.

Solution:

Take x=1\,,\,y=t\,,\,z=t

Check:

L.H.S=1^2+t^2-t^2=1+0=1=R.H.S

Therefore, x=1\,,\,y=t\,,\,z=t satisfy the given equation.

8 0
2 years ago
A roller coaster at an amusement park rises to a height of 196 feet above the ground. So far, it has risen 36% of this height. T
yawa3891 [41]

Answer:

40

Step-by-step explanation:

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8 0
2 years ago
Read 2 more answers
AC CE and D is the midpoint of CE. IF CE 10x + 18, DE =7x -1, and BC = 9x - 2, find AB, AB =
Anastasy [175]

Answer:

<h3>      If you mean: AC=CE, the answer is:  AB = 24</h3>

Step-by-step explanation:

D is the midpoint of CE, then

CD = DE = 0.5CE = 0.5(10x+18) = 5x + 9

So:   5x + 9 = 7x - 1

            -9          -9

        5x  =  7x - 8

        -7x      -7x

       -2x  =  -8

      ÷(-2)       ÷(-2)        

          x  =  4

AC = CE = 10x + 18 = 40 + 18 = 58

BC = 9x - 2 = 36 - 2= 34

AB = AC - BC = 58 - 34 = 24

4 0
2 years ago
Lawrence has two part-time jobs one at the movie theater and wanted a pet store he's paid by the hour at each job last week he w
alexandr402 [8]
Let x be the earnings/hour at the movie theater.
      y be the earnings/hour at the pet store

Systems of equations:

$152.50 = 10x + 8y
$171 = 8x + 10y

Solving for x and y:
x = $4.36/ hour in the movie theater
y = $13.61/ hour in the pet store.<span />
8 0
2 years ago
Jillian’s school is selling tickets for a play. The tickets cost $10.50 for adults and $3.75 for students. The ticket sales for
sergij07 [2.7K]

Answer:

The number of adults tickets sold   = 168.

Step-by-step explanation:

The cost of 1 adult ticket  = $10.50

The cost of 1 student ticket =  $3.75

The total sales from the ticket = $2071.50

Now, here let us assume

The number of adult tickets sold  = a

The number of student tickets sold  = b

So, the equation is given as :

10.50 a + 3.75 b = 2071.50

Now, its given the number of students  = 82

⇒ <u>b  =  82</u>

Putting the value of b in the above equation,w e get:

10.50 a + 3.75 ( 82) =  2071. 50

or, 10.50 a  = 2071.50 - 307.5 =  1764

or, a = 1764/10.5 =  168

Hence, the number of adults tickets sold  = a = 168.

3 0
2 years ago
Read 2 more answers
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