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Dovator [93]
3 years ago
10

NEED HELP ASAP Sari applied the distributive property using the greatest common factor to determine the expression that is equiv

alent to 84 +40. Her work is shown below.
Factors of 84: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84
Factors of 40: 1, 2, 4, 5, 8, 10, 20, 40

84 + 40 = 2 (42 + 20)

What statement best describes Sari’s error?
Sari did not use correct factors for 84 in the equation.
Sari did not use correct factors for 40 in the equation.
Sari did not use two equivalent expressions in the equation.
Sari did not use the greatest common factor in the equation.
Mathematics
2 answers:
o-na [289]3 years ago
5 0

Answer:

d

Step-by-step explanation:

Alexus [3.1K]3 years ago
4 0

Answer:

Sari did not use the greatest common factor in the equation.

Step-by-step explanation:

The greatest common factor in the expression

84 +40 is actually 4.

4 (21+10)

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Answer:

13 and 65

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(because u want a piece (x) and a piece that's five times longer than x- so 5x. and they should come from a 78 inch piece)

6x = 78

x = 78 / 6

x= 13

(to counter check:  13 * 5 = 65.  

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7 0
3 years ago
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Step-by-step explanation:

I believe B

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You need to purchase rolls of sod grass for a client's lawn, which is 75 feet by 100 feet. The large rolls of sod grass are 116
Nikolay [14]

The number of sod grasses needed is about one and half for the clients lawn

1 1/2 sod grasses

<h3> Area of Rectangle</h3>

Given Data

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Area of client's Lawn = Length * Width

= 75*100

= 7500 square feet

Size of large rolls of sod grass

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Area of large rolls of sod grass  = Length * Width

= 116*42

= 4872 square feet

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2 years ago
To cut a lawn, Allan charges a fee of $15 for his equipment and $8.50 per hour spent cutting a lawn. Taylor charges a fee of $12
777dan777 [17]

Answer:


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Let y be the total charge and x no of hours spent for cutting the lawn,

Then for Allan we have the equation as

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SInce 15 is the fixed charge and 8.50 is charged per hour we get the above equation for Allan.

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Whenever x i.e. no of hours exceed 4, Taylor charges will be greater than that of Allan

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