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Nadya [2.5K]
3 years ago
5

Arianna measured a line to be 9.9 inches long. If the actual length of the line is 7.8 inches, then what was the percent error o

f the measurement, to the nearest tenth of a percent?
Mathematics
2 answers:
Rus_ich [418]3 years ago
7 0

Answer: 26.9%

Step-by-step explanation:

9.9-7.8=2.1

(2.1/ 7.8) •100=26.9

blsea [12.9K]3 years ago
7 0
Theoretical value:75
Observed value:100
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Thomas buys 6 souvenirs for his friends and family. Each gift takes up 1/15 of his suitcase. If he has two suitcases, how much r
Gala2k [10]

Answer:

<u>Thomas still has 1 3/5 suitcases available for his own belongings.</u>

Step-by-step explanation:

1. Let's review the data given to us for solving the question:

Number of souvenirs bought by Thomas = 6

Space that each souvenir takes of Thomas suitcase = 1/15

Number of Thomas suitcases = 2

2.  How much room is left for his own belongings in his suitcases?

Let's find out how much space the souvenirs take:

Number of souvenirs * Space that each souvenir takes

6 * 1/15 = 6/15 = 2/5 (Dividing by 3 the numerator and the denominator)

The souvenirs take 2/5 of one suitcase.

Now, we can calculate the room that is left for Thomas' belongings.

2 Suitcases - 2/5 for the souvenirs

2 - 2/5 = 10/5 - 2/5 = 8/5 = 1 3/5

<u>Thomas still has 1 3/5 suitcases available for his own belongings.</u>

6 0
3 years ago
Solve for x: 8 (3x + 10) = 28x - 14 - 4x ​
Ierofanga [76]

Answer:

8(3x + 10) = 28x - 14 - 4x \\ 8 \times 3x + 8 \times 10 = 28x - 14 - 4x \\ 24x + 80 = 24x - 14 \\ 0x = 94 \\ x =  > has \: no \: solution

6 0
3 years ago
A pet store donated a percent of every sale to hospitals. The total sales were $8,750 so the store
Salsk061 [2.6K]

Divide the amount donated by total sales then multiply by 100.

350 / 8750 = 0.04

0.04 x 100 = 4%

5 0
3 years ago
PLEASE ANSWER THE PIC BELOW
jok3333 [9.3K]

Answer: 11

Step-by-step explanation:

Since the equation of circumference is 2(r)pi

if 22pi=2(r)pi

then 22=2r

22=2r

r=11

7 0
3 years ago
These equations take their y-values from the set (4, 5, 6, 7, 8). Arrange the equations in decreasing order of the values of y t
Advocard [28]

9514 1404 393

Answer:

  a, c, b

Step-by-step explanation:

Collect terms, subtract the constant, divide by the y-coefficient.

(a) 4y + (y - 1) = 29   ⇒   y = 6

(c) (2y + 3) - 4 = 9​   ⇒   y = 5

(b) 4y - y + 1 = 13   ⇒   y = 4 . . . . . this equation is not what you have written

__

<em>Additional comment</em>

The second equation suffers from a typo, so your answer may vary.

3 0
3 years ago
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