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3 years ago

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Tim has been trying to lose weight. Through exercise, he was able to lose 5 pounds over 2 weeks. However, Mary lost 10 times as

much weight over 1 year of diet and exercise. How much weight did Mary Lose?

2 answers:

wolverine [178]3 years ago

7 0

I think 50 pounds. I am not sure.

ale4655 [162]3 years ago

7 0

She has lost 50 pounds because tim lost 5 and Mary lost 10 so 10 X 5 is 50

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Please answer 10 point + brainlyest = 1 big thank u

solmaris [256]

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

FIRST, we want to understand every property:

Associative Property: The associative property states that you can add or multiply regardless of how the numbers are grouped so (5 + 4) + 3 = 5 + (4 + 3)

Commutative Property: Commutative is the one that refers to moving stuff around so 3 + 2 = 2 + 3

Additive Inverse Property: This is the number that when added to the original number, equals 0 or it's the opposite of the number so 5 <- is the original number and -5 <- is the additive inverse.

Simplify: Is just to add like terms, and make the equation the simplest.

1. ORIGINAL EXPRESSION

2. Additive Inverse Property

3. Commutative property

4. Associative Property

5. Simplify

6. Simplify

8 0

3 years ago

jed took 2 free throws in 5 seconds.alex took 4 free throws in 12 seconds.did the two shoot free throws at the same rate

Sav [38]

No look at the problem set as a fraction Jed did 2 shots in 5 seconds while simplified Alex shot 1 every 3 seconds . hope this helps

3 0

3 years ago

Which car gets the best gas mileage, or most miles per gallon? A 240 miles on 10 gallons car B 160 miles on 5 gallons car C 30 m

postnew [5]

A.

240 miles : 10 gallons

240/10 miles : 10/10 gallons

24 miles : 1 gallon

Car A travels 24 miles on one gallon of gas.

The mileage is 24 mpg (miles per gallon)

----------------------------

B.

160 miles : 5 gallons

160/5 miles : 5/5 gallons

32 miles : 1 gallon

The mileage is 32 mpg. So far, car B is better than car A.

----------------------------

C.

30 miles : 1 gallon

The mileage is 30 mpg, which is not better than car B

---------------------------

D.

168 miles : 6 gallons

168/6 miles : 6/6 gallons

28 miles : 1 gallon

Mileage is 28 mpg. Car C has better mileage and car B has the best overall.

----------------------------

<h3>Answer: The car with the best mileage is car B with 32 mpg</h3>

The rankings, from best to worst mileage is: B, C, D, A

3 0

3 years ago

Read 2 more answers

The data list shows the scores of ten students in Mr. Smith's math class. 61, 67, 81, 83, 87, 88, 89, 90, 98, 100 What is the st

cluponka [151]

Answer:

12.3

Step-by-step explanation:

Step 1

We find the mean

The data list shows the scores of ten students in Mr. Smith's math class. 61, 67, 81, 83, 87, 88, 89, 90, 98, 100

Mean = Sum of terms/Number of terms

Number of terms = 10

Mean = 61 + 67 + 81 + 83 + 87 + 88 + 89 + 90 + 98 + 100/10

Mean = 844/10

Mean = 84.4

Step 2

Standard deviation

The formula for sample standard deviation =

√(x - Mean)²/n - 1

= √[(61 - 84.4)² + (67 - 84.4)² + (81 - 84.4)² + (83 - 84.4)² + (87 - 84.4)² + (88 - 84.4)² + (89 - 84.4)² + (90 - 84.4)² + (98 - 84.4)² + (100 - 84.4)²]/10 - 1

=√ 547.56 + 302.76 + 11.56 + 1.96 + 6.76 + 12.96 + 21.16 + 31.36 + 184.96 + 243.36/10 - 1

= √1364.4/9

= √151.6

= 12.31259518

Approximately to the nearest tenth = 12.3

The standard deviation = 12.3

6 0

3 years ago

Molly is painting a model house and needs to know how much paint she will need. She knows the surface area of the prism is 216 s

gtnhenbr [62]

Answer:

1. a square which is 6 × 6in

2. the inside of the prism or cube as it is not seen from the outside

3. the area of the square - 6 × 6 = 36in

4. 6 x 6 = 36 / one face of prism

× 5 = 180

4 × 6/2 = 12 / one face of pyramid

x 5 = 60

60 + 180 = 240

6 0

2 years ago