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Kobotan [32]
3 years ago
12

1500 people to part in a walkathon. 450 of them were school children. The rest are adults. What percentage of the participants w

ere adults?
Mathematics
2 answers:
Bas_tet [7]3 years ago
5 0
70% of the people were adults 

First you subtract 1500-450 = 1050
Then you divide 1050/1500 = .7

Nookie1986 [14]3 years ago
4 0
The percentage would be about 65% because 25% is 375 and 50% is 750 75% is 1125 so it would be 62% -65%
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viva [34]

Answer:

Given points

  • A = (2, 1)
  • B = (4, 3)
  • C = (5, 3)
  • D = (6, 1)

<h3><u>Part (a)</u></h3>

See attached

<h3><u>Part (b)</u></h3>

Trapezoid

<h3><u>Part (c)</u></h3>

To dilate ABCD with a dilation center at (0,0) and a dilation factor of 4, multiply the x and y coordinates of ABCD by sf 4:

  • A' = (8, 4)
  • B' = (16, 12)
  • C' = (20, 12)
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<h3><u>Part (d)</u></h3>

<u />\begin{aligned}\textsf{Area of Trapezoid}& =\dfrac{1}{2}(a+b)h\\\implies \textsf{Area of A'B'C'D'}& =\dfrac{1}{2}((x_{D'}-x_{A'})+(x_{C'}-x_{B'}))(y_{B'}-y_{A'})\\& = \dfrac{1}{2}((24-8)+(20-16))(12-4)\\& = \dfrac{1}{2}(20)(8)\\& = 80\: \sf units^2\end{aligned}

5 0
2 years ago
Write an equation of a line that passes through (-6, 1), parallel to y = 2x – 6.
Eddi Din [679]

Answer:

y = -1/2x - 2

Step-by-step explanation:

If it's parallel, that means that the slope is the opposite of the one in the given equation, meaning that 2 would be flipped and turned negative into -1/2.

Then, fill in the x and y values to get the y-intercept.

1 = -1/2(-6) + b

1 = 3 + b

-2 = b

So your answer is y = -1/2x - 2

4 0
3 years ago
33
olga2289 [7]

Answer:

$1.61

Step-by-step explanation:

Tax paid = 7% of $23

= 0.07*23

= $1.61

8 0
3 years ago
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Leno4ka [110]

Answer:

-87= 1 + 8x

-88= 8x

x= -11

Basically bring over the one to the other side of the equation and solve for x by dividing.

6 0
3 years ago
Which one that doesn’t belong ? 1/20, 20/25, 2/3, 5,4 <br> Need help!!
Setler [38]

Answer:

\frac{5}{4}

Step-by-step explanation:

Out of the given options, \frac{5}{4} is the only fraction that is improper. All other options are not improper. Therefore, \frac{5}{4} would not belong is the given group of fractions.

Hope this helps.

3 0
3 years ago
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