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Damm [24]
3 years ago
10

I need your help please!

Mathematics
1 answer:
Aneli [31]3 years ago
5 0

Answer:

1 mile is mapped to 0.3428 inches i.e. unit rate is 0.3428 inches/mile.

Step-by-step explanation:

Given that the scale of the map is \frac{3}{10} inches = \frac{7}{8} miles ....... (1)

Now, we have to convert this map scale to a unit rate.

And the unit rate is the number of inches per mile.  

As the scale is constant, therefore from the the relation (1) we get  

1 mile = \frac{3 \times 8}{10 \times 7} = 0.3428 inches.

Therefore, 1 mile is mapped to 0.3428 inches i.e. unit rate is 0.3428 inches/mile.  (Answer)

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22 divided by a number s in an algebraic expression
spayn [35]

Answer:

\frac{22}{s}

Step-by-step explanation:

Let

s -----> a number

we know that

The expression 22 divided by a number s, is the same that say the quotient of 22 and s

where

22 is the numerator and s is the denominator

therefore

\frac{22}{s}

6 0
3 years ago
The battery on McKenzies old computer can last 4(1/5) hours. She bought a new computer that has a battery that can last 40% long
Solnce55 [7]

Answer:

5\frac{22}{25}\ hours

Step-by-step explanation:

we know that

4\frac{1}{5}\ hours=\frac{4*5+1}{5}=\frac{21}{5}\ hours

100\%+40\%=140\%=\frac{140}{100}

Let

x ------> new battery life

The equation that represent this situation is

x=\frac{140}{100} (\frac{21}{5})=\frac{2,940}{500}\ hours

convert to mixed number

\frac{2,940}{500}=\frac{2,500}{500}+\frac{440}{500}=5\frac{22}{25}\ hours

4 0
3 years ago
I don’t understand this problem
Rina8888 [55]

Answer:

Standard Deviation, σ = 6.5828058860438

Step-by-step explanation:

<u>Data Set:</u> 20, 11, 27, 13, 29, 20

The total numbers in the data set

Count, N = 6

The sum is all values in the data set is added up

20 + 11 + 27 + 13 + 29 + 20

Sum, Σx: 120

The mean is the sim / N

Mean, μ: 20

7 0
1 year ago
Solve for x: |x| − 8 = −5
hjlf
X= 3  and x= -3 that should be the correct answer

3 0
3 years ago
the fare for a taxi cab is a $2 flat fee plus additional $1.50 for each mile. which equation represent the total cab fee in doll
inna [77]
1.50x +2=y  Where x is how many miles and y is the total 
5 0
3 years ago
Read 2 more answers
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