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Alik [6]
3 years ago
15

Carmen is simplifying the expression (6.21 + 0.93) + 0.07 She recognizes that 0.93 and 0.07 will combine to equal 1, so she woul

d like to find that sum before she adds 6.21. Which property will allow Carmen to do this without changing the value of the expression?
Mathematics
2 answers:
DiKsa [7]3 years ago
7 0

Answer:

6.21 + (0.93 + 0.07)

Associative property.

Step-by-step explanation:

took the test in edge <3

almond37 [142]3 years ago
4 0
For this case we have the following expression:
 (6.21 + 0.93) + 0.07
 We apply the associative property of the addition to rewrite the expression.
 This property indicates that, when there are three or more terms in these operations, the result does not depend on the way in which the terms are grouped.
 We have then:
 6.21 + (0.93 + 0.07)
 Answer:
 
6.21 + (0.93 + 0.07)
 
Associative property.
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A cement walkway of uniform width has been built around an in-ground rectangular pool. the area of the walkway is 1344 square fe
Elza [17]

Answer:

6 feet.

Step-by-step explanation:

Dimensions of the Pool =80 feet long by 20 feet wide

Area of the walkway =1344 square feet.

If the width of the walkway=w

  • Length of the Larger Rectangle =80+2w
  • Width of the Larger Rectangle =20+2w

Area of the Walkway =Area of the Larger Rectangle - Area of the Pool

1344=(80+2w)(20+2w)-(80*20)\\1344=80*20+160w+40w+4w^2-80*20\\4w^2+200w=1344\\4w^2+200w-1344=0\\We factorize\\4(w^2+50w-336)=0\\4(w^2-6w+56w-336)=0\\w(w-6)+56(w-6)=0\\(w-6)(w+56)=0\\w-6=0$ or $ w+56=0\\w=6$ ft or $ w=-56$ \\Therefore, the width of the walkway , w=6 feet.

6 0
3 years ago
The Taylors have recorded their weekly grocery expenses for the past 12 weeks and determined that the mean weekly expense was ​$
SVETLANKA909090 [29]

Answer:

$84.80

Step-by-step explanation:

find the difference between accurate price and written price: 74 - 47 = 27

find written total (before Mrs. Taylor found mistake) by undoing the mean calculation: 82.55 x 12 = $990.60

the total expenses is $27 more than what they thought: 990.60 + 27 = 1017.60

divide accurate total by 12 to find mean: 1017.60 / 12 = $84.80

hope this helps :)

4 0
2 years ago
A car traveled 11.5 miles in 15 minutes. How many miles per hour was it traveling?
polet [3.4K]

Answer:

46 miles per hour

Step-by-step explanation:

ِAn hour has 60 minutes. In 60 minutes, there is four 15 minutes (4*15 = 60).

So, if it travelled 11.5 miles in 15 minutes, in an hour, it travelled 11.5 * 4 = 46 miles per hour.

8 0
3 years ago
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Keith_Richards [23]

Answer:

Sorry Pinsonjon1129 but you are wrong the question is at the bottom how many people plan to participate in at least two sports? the answer 46

Step-by-step explanation:

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6 0
3 years ago
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2x+3y=24 in slope intercept form<br><br> ASAPPPPPPPPPPPPP
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Answer:

y=(-2/3)x+8

Step-by-step explanation:

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6 0
3 years ago
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