According to the study unit, the commutative property means
A. the way the numbers are grouped doesn't affect the sum.
B. the order in which you add the numbers does affect the sum.
C. the order in which you add the numbers doesn't affect the sum.
D. the way the numbers are grouped does affect the sum.

s

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Asked 10/19/2018 9:53:11 AM

Updated 65 days ago|6/1/2021 4:00:15 AM

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Expert answered|Score 1|Masamune|Points 80307|

Expert answered|Score 1|emdjay23|Points 154169|

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Question

Asked 10/19/2018 9:53:11 AM

Updated 65 days ago|6/1/2021 4:00:15 AM

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3

The proper placement for parentheses to speed up the addition for the expression 2 + 9 + 8 + 1 is (8 + 2) (9 + 1).

Added 65 days ago|6/1/2021 4:00:15 AM

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3. Ebony earns $2,000 per month. If she spends $450 on rent each month, what percent of her income does she spend on rent? A. 17.24% B. 25% C. 22.5% D. 10% **Weegy:** She spent 22.5% of her income does she spend on rent. 450/2000*100=22.5 (More)

Question|Asked by jasminef15

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Updated 86 days ago|5/11/2021 10:57:46 PM

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3. Ebony earns $2,000 per month. If she spends $450 on rent each month, what percent of her income does she spend on rent? A. 17.24% B. 25% C. 22.5% D. 10% **Weegy:** She spent 22.5% of her income does she spend on rent. **User:**
2. What are the extremes of the following proportion?
3 15 = 12 60
A. 3 and 60
B. 15 and 12
C. 3 and 15
D. 12 and 60
**Weegy:** The extremes of the proportion 3/15 = 12/60 are 3 and 60. **User:** If you're currently making $8.75 per hour and you're offered a new job that pays $9.47 per hour, how much more would you make per hour at the new job?
A. $.72
B. $1.28
C. $1.72
D. $.28 **Weegy:** If you're currently making $8.75 per hour and you're offered a new job that pays $9.47 per hour, you would make $.72 more per hour at the new job.
$9.47 - $8.75 = $.72 **User:** Xavier worked 10 hours on Monday and 15 hours on Wednesday. His total pay was $280.00. What is his rate per hour?
A. $11.20
B. $18.25
C. $7.50
D. $15.00 **Weegy:** 280/(10+15) = 11.20. Xavier's rate per hour is $11.20. **User:** Lavina wants to buy a rocking chair for $160. She'll pay 10% down and pay the rest in six monthly installments. What will be the amount of each monthly payment?
A. $27
B. $24
C. $26
D. $16 **Weegy:** $24.00 is her monthly payment. **User:** The ratio of an object's weight on Earth to its weight on Neptune is 5 : 7. How much would a person who weighs 150 pounds on Earth weigh on Neptune?
A. 170 pounds
B. 210 pounds
C. 107 1/7 pounds
D. 750 pounds **Weegy:** The ratio of an object's weight on Earth to its weight on Neptune is 5 : 7. A person who weighs 150 pounds on Earth would weigh 210 pounds on Neptune. 5/7 = 150/x; 5x = 1050; x = 1050/5; x = 210 **User:** A ratio is defined as
A. a set of equal ratios.
B. two equal numbers.
C. a comparison between two sets.
D. a comparison between three sets. **Weegy:** A ratio is a relationship between two numbers indicating how many times the first number contains the second.
**User:** Which one of the following statements expresses a true proportion?
A. 54:9 = 6:3
B. 2:1 = 1:2
... (More)

Question|Asked by jasminef15

Updated 7/5/2019 3:59:04 PM

1 Answer/Comment

3:4 = 9:12 expresses a true proportion.

Added 7/5/2019 3:59:04 PM

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If a university wants to maintain a 14:1 ratio between students and teachers, how many teachers would be needed to accommodate 896 students?
A. 28 teachers
B. 64 teachers
C. 14 teachers
D. 100 teachers
**Weegy:** If a university wants to maintain a 14:1 ratio between students and teachers, 896 / 14 = 64 teachers would be needed to accommodate 896 students.
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Question|Asked by jasminef15

Expert Answered

Updated 126 days ago|4/1/2021 1:26:48 PM

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A car recently sold for $32,345. If there's a 6% sales tax on automobile sales, how much tax will be added to the price of the car?
A. $1,940.70
B. $194.70
C. $34,285.70
D. $941.07

Question|Asked by jasminef15

Not Answered

Updated 7/5/2019 3:58:02 PM

1 Answer/Comment

$1,940.70 will be added to the price of the car.

$32,345 * 6/100 = $1,940.70

$32,345 * 6/100 = $1,940.70

Added 7/5/2019 3:58:02 PM

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3. Ebony earns $2,000 per month. If she spends $450 on rent each month, what percent of her income does she spend on rent? A. 17.24% B. 25% C. 22.5% D. 10% **Weegy:** She spent 22.5% of her income does she spend on rent. **User:** 17. A certain alloy contains 14.25% nickel. How much nickel is there in a piece weighing 375 pounds? Round your answer to the nearest hundredth. A. 78.92 pounds B. 12.24 pounds C. 53.44 pounds D. 112.49 pounds (More)

Question|Asked by jasminef15

Updated 7/5/2019 3:57:20 PM

1 Answer/Comment

A certain alloy contains 14.25% nickel. 53.44 pounds nickel is there in a piece weighing 375 pounds.

375 * 14.25 % = 375 *0.1425 = 53.44 pounds.

375 * 14.25 % = 375 *0.1425 = 53.44 pounds.

Added 7/5/2019 3:57:20 PM

This answer has been confirmed as correct and helpful.

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