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andrey2020 [161]
2 years ago
14

Been looking for answers all day. Please.

Mathematics
1 answer:
Papessa [141]2 years ago
8 0

Answer:88

Step-by-step explanation:

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Write the ratio as a fraction in simplest form, with whole numbers in the numerator and denominator.
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The answer is 20/28=5/7
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Check all solutions to the equation. x² =-4
vovangra [49]

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x=2i, -2i

Step-by-step explanation:

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Write the quadratic equation whose roots are 1 and -2, and whose leading coefficient is 3.
kirill115 [55]

Answer:

  • See below

Step-by-step explanation:

<u>The quadratic equation in factored form:</u>

  • a(x - α)(x - β), where a- leading coefficient, α and β - roots

<u>We have:</u>

  • a = 3, α = 1, β = -2

<u>Substitute them to get:</u>

  • 3(x - 1)(x + 2)

<u>Converting this into standard form:</u>

  • 3(x - 1)(x + 2) =
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  • 3x² + 3x - 6
3 0
2 years ago
At the city Museum child admission is $6.40 in adult admission is $9.70 on Sunday 149 tickets were sold for a total sales of $11
Law Incorporation [45]

Answer:

Adult=58

Step-by-step explanation:

c=child, a=adult

6.4c+9.7a=1145 equation 1

c+a=149 equation 2

a=149-c modified equation 2 to isolate a

6.4c+9.7(149-c)=1145 substitute value of a from equation 1 into equation 2

6.4c+1445.3-9.7c=1145

-3.3c=-300.3

c=91

solve for a

c+a=149

91+a=149

a=58

Check answer:

6.4c+9.7a=1145

6.4(91)+9.7(58)=1145

582.40+562.60=1145

1145=1145

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3 years ago
A. Two numbers are in the ratio 5:7. When 3 is added to each number, the new ratio becomes 3 : 4. Find the numbers. ​
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Answer:

answer is 3 and ratio of two different numbers

5 0
2 years ago
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