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Monica [59]
3 years ago
9

A family of two adults and three children went to a water park. Admission to the water park costs $18 per person. Nora used the

expression 2 (18) + 3 (18) to model the total cost for the family, and Alex used the expression 5 (18). Which property of operations makes both of their expressions correct? associative property commutative property distributive property identity property
Mathematics
2 answers:
horsena [70]3 years ago
5 0

Answer: distributive property

Step-by-step explanation:

5(18)=2(18)+3(18)

18(2+3) = 2* 18+ 3*18

18*5 =  2* 18+ 3*18

grandymaker [24]3 years ago
3 0

Answer: Distributive Property

Step-by-step explanation:

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A 9-yard roll of string costs $3.42. What is the unit price?
Karolina [17]

<em>Answer:</em>

<em>$0.38 per yard</em>

<em>Step-by-step explanation:</em>

<em>Step 1:</em>

Given; A 9-yard roll of string that costs $3.42.

Required; To find the unit price

<em>  Step 2:</em>

Convert $3.42 to cents

1 ~dollar=100~cents ~\\therefore,\\$3.42=3.42~x~100=342~cents~

<em>Step 3:</em>

<em>Find the unit price</em>

\frac{9 yard}{1 yard} =\frac{342 ~cents}{x~cents}

9x=342

\frac{9x}{9} =\frac{342}{9}

x=38~cents

<em>Convert to dollars</em>

x=\frac{38}{100}

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Hence the unit price is $0.38 per yard.

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Should this answer be a fraction or a whole number?
lana [24]
It should be a whole number. 
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A parking lot is 20 feet long. One tortoise starts at the edge of the parking lot and moves at a rate of 6 feet per minute. Anot
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Answer:

Kindly check explanation

Step-by-step explanation:

Length of parking lot = 20 feets

Speed of tortoise which starts at the edge = 6 feets per minute

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Equation to represent when they will be in the same spot.

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