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max2010maxim [7]
3 years ago
9

A scale is 10% off on measurements. The actual mass of a bracelet is 30g. What 2 masses might the scale show?

Mathematics
1 answer:
lukranit [14]3 years ago
6 0

10% of 30 is .3

30 * (10/100) = .3


So 30 + .3 = 30.3

And 30 - .3 = 29.7

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Jessica sold girl scout cokies she sold 26 boxes.How many cases of 12 plus extra boxes does she need.
Westkost [7]

Answer:

Jessica needs 2 cases of 12 girls scout cookies plus 2 extra boxes

Step-by-step explanation:

Number of boxes sold = 26

Cases of 12 plus extra boxes needed

Number of cases of 12 needed :

Number of boxes sold / 12

= 26 /12

= 2 remainder 2

Hence, Jessica needs 2 cases of 12 girls scout cookies plus 2 extra boxes

6 0
3 years ago
The length of a rectangle is 3 less than 4 times the width. The perimeter is 34. Find the length and width of the rectangle
max2010maxim [7]

I got -7.75 when i did it


6 0
3 years ago
When Maria finished medical school, she owed $36,000 in student loans. She repaid of the total
Viktor [21]

Answer:

$24,000

Step-by-step explanation:

To find how much she owed, find 2/3 of 36,000, since she repaid 1/3

36000(2/3)

= 24,000

So, two years after graduating, Maria owed $24,000

7 0
2 years ago
An alligator can eat 18 pounds of meat in 2 hours. If it continues eating at this same rate, how much can it eat in 7 hours?
Mariana [72]

Answer:

63 pounds

Step-by-step explanation:

Given data

Quantity of meat= 18 pounds

TIme taken= 2 hours

Rate= Quantity/Time taken

Rate= 18/2

Rate= 9 pounds per hour

Now time= 7 hours

Rate= 9 pounds per hour

Quantity= Rate*Time

Quantity= 9*7

Quantity= 63 pounds

5 0
3 years ago
A triangle has the side lengths of 12 cm, 15 cm, and 20 cm. Classify it as acute, obtuse, or right.
umka21 [38]

Answer:

Obtuse  

Step-by-step explanation:

Plugging the numbers into the Pythagorean Theorem (a^2 + b^2 = c ^2)

20^2 = 12^2 + 15^2

400 > 144 + 225

400 > 369

Because of the Converse of the Pythagorean Theorem, which tells us if c is greater than a+b, it is obtuse

5 0
2 years ago
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