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katen-ka-za [31]
3 years ago
6

A personal pizza is $7.00 plus $0.50 per topping. Is this proportional?

Mathematics
1 answer:
andre [41]3 years ago
8 0
Yes, this is proportional. Proportional means corresponding in size or amount to something else.
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(4√3 − 2√5)(3√10 + 5√6) simplify show all work
bulgar [2K]

Answer:

2√30 + 30√2

Step-by-step explanation:

(4√3 − 2√5)(3√10 + 5√6) simplify

=======

  • (4√3 − 2√5)(3√10 + 5√6)=
  • 12√30 + 20√18 - 6√50 - 10√30=
  • 2√30 + 20*3√2 - 6*5√2=
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What is the solution to the equation below?
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Answer:

X=4

Step-by-step explanation:

The solution is in the file

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What is the solutions of 2x^2 + 8x + 26 = 0
Aleks04 [339]

Answer:

-7/2

Step-by-step explanation:

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3 years ago
What is slope when talking about math
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The sum of the ages of Berma, her mother Rinna and her father Erwin is 80. Two years from now, Rinna’s age will be 13 less than
jekas [21]

Answer: Berma is 5 years old

Rinna is 38 years old

Erwin is 37 years old

Step-by-step explanation:

Let x represent Berma's age

Let y represent Rinna's age

Let z represent Erwin's age

Since the sum of their ages is 80,

x + y + z = 80 - - - - - - -1

Two years from now, Rinna’s age will be 13 less than the sum of Erwin’s age and twice Berma’s age. This means that

y +2 = [ (z+2) + 2(x+2) ] - 13

y +2 = z + 2 + 2x + 4 - 13

2x - y + z = 13 + 2 - 4 -2

2x - y + z = 9 - - - - - - -2

Three years ago, 15 times Berma’s age was 5 less than the age of Rinna. It means that

15(x - 3) = (y - 3) - 5

15x - 45 = y - 3 - 5

15x - y = - 8 + 45

15x - y = 37 - - - - - - - -3

From equation 3, y = 15x - 37

Substituting y = 15x - 37 into equation 1 and equation 2, it becomes

x + 15x - 37 + z = 80

16x + z = 80 + 37 = 117 - - - - - - 4

2x - 15x + 37 + z = 9

-13x + 2 = -28 - - - - - - - - -5

subtracting equation 5 from equation 4,

29x = 145

x = 145/29 = 5

y = 15x - 37

y = 15×5 -37

y = 38

Substituting x= 5 and y = 38 into equation 1, it becomes

5 + 38 + z = 80

z = 80 - 43

z = 37

6 0
3 years ago
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