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Pie
2 years ago
5

Logan measured a line to be 7.4 inches long. If the actual length of the line is 7.7 inches, then what was the percent error of

the measurement, to the nearest tenth of a percent?
PWEEESE HELP FOR BRAINLIEST PLEASEEEEEE
Mathematics
1 answer:
Tanzania [10]2 years ago
8 0

Answer:

4.0541

Step-by-step explanation:

I don't know if this is correct but this is what I got.

You would take the error and divide it by the theoretical value and then multiply that by 100.

7.7 - 7.4 = 0.3

0.3 ÷ 7.4 = 0.04054054

0.04054054 x 100 = 4.05405405 (simplify) = 4.0541%

Hope I helped in any way

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Sand and gravel are mixed in the ratio 5:3 to form ballast.
r-ruslan [8.4K]
<h3>Answer:  1250 kg of sand</h3>

Work Shown:

sand/gravel = 5/3

x/750 = 5/3

3x = 750*5

3x = 3750

x = 3750/3

x = 1250

8 0
1 year ago
Simplify the expression: (− 2/3 pq^4)^2·(−27p^5q)
VladimirAG [237]

Answer:

-12p^7q^9

Step-by-step explanation:

(-2/3Pq^4)^2×(-27P^5q)

= ((-2)^2)/3^2 × P^2 q^4-2 × (-27qp^5)

= ((-2)^2)/3^2 × 27p^7q9

= (((-2)^2 x 27p^7q9)/3^2

= -((4×27p^7q^9)/9)

= -(108p^7q^9)/9

= -12p^7q^9

4 0
3 years ago
Which values of a, b, and c correctly represent the answer in simplest form? 3 and one-half divided by 2 and one-fourth = a Star
sasho [114]

Answer:

(A) a=1,b=5,c=9

Step-by-step explanation:

We want to simplify 3\frac{1}{2} \div 2\frac{1}{4} for values of a, b and c which satisfies: a\dfrac{b}{c}

3\dfrac{1}{2} \div 2\dfrac{1}{4}\\\text{Changing each fraction to improper fraction}\\=\dfrac{7}{2}\div \dfrac{9}{4}\\\text{Next, we change the division sign to multiplication by taking reciprocal of the second fraction}\\=\dfrac{7}{2}X \frac{4}{9}\\=\dfrac{7X4}{2X9}\\=\dfrac{28}{18}\\Converting our result to mixed fraction

\dfrac{28}{18}=1\dfrac{10}{18}=1\dfrac{5}{9}\\a=1,b=5,c=9

4 0
3 years ago
Read 2 more answers
Please help me out I need it soon
Kisachek [45]

Answer:

\frac{3}{5} =  z+\frac{1}{5}

Step-by-step explanation:

AS we can see in the figure that a beam or a rod is balanced by a square on right side

while on the left side we have a smaller square and a triangle

Suppose the values written inside it are the weights of the shapes which are making it stable

So

Total on RHS = Total on LHS

Now Total on RHS = Value of bigger square

                               = \frac{3}{5}

Total on LHS = Value of smaller sqaure + Value of triangle

                       = \frac{1}{5}+z

Now we know to make this image a balanced one as shown n the figure

Total on RHS = Total on LHS

putting values gives us

\frac{3}{5} =  \frac{1}{5}+z

which is the required equation


4 0
3 years ago
Can you guys help me? thank you
grin007 [14]

Answer:

4.9 x 10^9 = 4,900,000,000

3.2 x 10^-5 = 0.000032

Step-by-step explanation:

4.9 x 10^9 = 4,900,000,000: note the 9 places after the 4.

10^9 = 1,000,000,000; after substituting,

4.9 x 1,000,000,000 = 4,900,000,000

10^-5 = 0.00001

3.2 x 0.00001 = 0.000032

6 0
3 years ago
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