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2 years ago

How do you identify proportional relationships?

Mathematics

1 answer:

Pepsi [2]2 years ago

4 0

You asked "How do you identify proportional relationships?"

It would be by determining whether two quantities are in a proportional relationship.

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59.2g of sugar is needed to make 8 cakes. How much sugar is needed for 11 cakes?

Eva8 [605]

Answer:

81.4

Step-by-step explanation:

59.2g is for 8, so to find the price per, 59.2/8=7.4. 7.4*11=81.4

3 0

3 years ago

Read 2 more answers

The sum of 10and 7 to the difference of a number and 12

anzhelika [568]

( 10 +7) - x = 12
17 - x = 12
- x = 12 - 17
- x = - 5
x = 5

17 - 5 = 12

5 0

3 years ago

Select all the statements that are true.

alexgriva [62]

Answer:

The product of 8x(5x−6) is 40x^2−48x

The product of (x−3)(5x−6) is 5x^2−21x+18

Step-by-step explanation:

<u><em>Verify each option</em></u>

Part 1) The product of 8x(5x−6) is 40x^2−48x

we have

$8x(5x-6)$

Applying distributive property

$8x(5x)-8x(6)\\40x^2-48x$

Compare with the given value

$40x^2-48x=40x^2-48x$

therefore

The statement is true

Part 2) The product of −4x(2x2+1) is −8x^3−5x

we have

$-4x(2x^{2}+1)$

Applying distributive property

$-4x(2x^{2})-4x(1)\\-8x^3-4x$

Compare with the given value

$-8x^3-4x \neq -8x^3-5x$

therefore

The statement is not true

Part 3) The product of (x−3)(5x−6) is 5x^2−21x+18

we have

$(x-3)(5x-6)$

Applying distributive property

$x(5x)-x(6)-3(5x)+3(6)\\5x^2-6x-15x+18\\5x^2-21x+18$

Compare with the given value

$5x^2-21x+18=5x^2-21x+18$

therefore

The statement is true

Part 4) The product of (2x+3)(x^2+3x−5) is 2x^3+9x^2+9x−25

we have

$(2x+3)(x^2+3x-5)$

Applying distributive property

$(2x)(x^2+3x-5)+(3)(x^2+3x-5)\\(2x^3+6x^2-10x)+(3x^2+9x-15)\\2x^3+9x^2-x-15$

Compare with the given value

$2x^3+9x^2-x-15 \neq 2x^3+9x^2+9x-25$

therefore

The statement is not true

8 0

3 years ago

Which of the following setups, when solved, would give you the number of seconds in one week?

sweet-ann [11.9K]

c) 1 week x 7 days/1 week x 24hr/1 day x 60min/1hr x 60s/1min =

If you solved it, you would get 604,800, which is correct.

7 0

3 years ago

Isabella is getting older and feels like she should donate her collection of stuffed animals to children who are less fortunate.

Studentka2010 [4]

Answer:

well for the cats she can do 3 for each and dogs 2 for each

3 0

2 years ago