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galben [10]
3 years ago
11

Need help with all of these

Mathematics
1 answer:
emmainna [20.7K]3 years ago
6 0
1 a - 128 (400*.32=128)b - 36 (400*.09=36)c - 25% (32+9+20+14 = 75-100=25)
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Rule add 15, subtract 10 first term4
mr Goodwill [35]
I think that would be 9 I am not sure.

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3 years ago
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Which ordered pair is a solution to the system of linear equations One-half x minus three-fourths y = StartFraction 11 Over 60 E
s344n2d4d5 [400]

Answer:

\left(\dfrac{2}{3},\dfrac{1}{5}\right)

Step-by-step explanation:

Given the system of two equations:

\left\{\begin{array}{l}\dfrac{1}{2}x-\dfrac{3}{4}y=\dfrac{11}{60}\\ \\\dfrac{2}{5}x+\dfrac{1}{6}y=\dfrac{3}{10}\end{array}\right.

Multiply the first equation and the second equation by 60 to get rid of fractions:

\left\{\begin{array}{l}30x-45y=11\\ \\24x+10y=18\end{array}\right.

Now multiply the first equation by 4 and the second equation by 5:

\left\{\begin{array}{l}120x-180y=44\\ \\120x+50y=90\end{array}\right.

Subtract them:

(120x-180y)-(120x+50y)=44-90\\ \\120x-180y-120x-50y=-46\\ \\-230y=-46\\ \\y=\dfrac{46}{230}=\dfrac{1}{5}

Substitute it into the first equation:

30x-45\cdot \dfrac{1}{5}=11\\ \\30x-9=11\\ \\30x=11+9\\ \\30x=20\\ \\x=\dfrac{2}{3}

The solution is \left(\dfrac{2}{3},\dfrac{1}{5}\right)

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Help with this pleased
Andru [333]

Answer:

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The set of odd numbers between zero and ten is:

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A meter = 10000 cm

30cm/1m
30/10000
=0.003
x100 (for the percent)

=0.3%

6 0
3 years ago
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