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anzhelika [568]

3 years ago

9

A map has a scale of 3 inches = 7 feet. The distance between two towns is 7.5 inches on a map. How far are the two towns actuall

y apart?
PLZ HELPP

1 answer:

amid [387]3 years ago

5 0

Answer:

17.5 feet

Step-by-step explanation:

7.5 inches divided by 3 inches is 2.5 (3+3+1.5). 2.5 times 7 is 17.5.

Therefore, the towns are 17.5 feet apart.

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Answer:

Step-by-step explanation:

proucer surplus

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4 years ago

Read 2 more answers

Solve for u. what us u (the variable)?

pashok25 [27]

Answer:

Step-by-step explanation:

First, if you get 2 by subtracting 2/3 from U, it would be equally logical that you can add 2/3 to 2 to get U.

2/3+2=2 2/3

The answer to your question should be 2 2/3.

Sorry if this doesn't help/is incorrect.

6 0

4 years ago

1. The monthly rents for studio apartments in a certain city have a mean of $920 and a standard deviation of $190. Random sample

Veronika [31]

Answer:

1)Mean=920 $

2)Standard Error =S.E.=38

3)more likely to take place Event 25 studio apartments with a mean rent between $901 and $939

Step-by-step explanation:

Given:

True mean =920 $

S.D=190 $

No .of samples=25

To Find:

1)Mean of sample.

2)S.E

Solution:

Now , the mean for given sample distribution is given as 920 $

Hence Mean =920 $

Now calculating the Standard error

S.E.= S.D./Sqrt(n)

=190/Sqrt(25)

=190/5

=38

Therefore the Standard error is about 38 .

a) When n=1 then P(901≤X≤939)

So,

Z1=(901 -920)/190/Sqrt(1)]

Z1=-0.1

Z2=(939-920)/(190/Sqrt(1)]

Z2=0.1

So

Pr(-0.1≤Z≤0.1)=P(Z≤0.1)-P(Z≤-0.1)

=0.5398-0.4602

=0.0797 % chance of the sample distribution

b)n=25 then P(901≤X≤939)

Z1=(901-920)/S.E

Z1=-19/38=

Z1=-0.5

And Z2=0.5

So,

Pr(-0.5≤Z≤0.5)

=Pr(Z≤0.5)-Pr(Z≤-0.5)

=0.6915-0.3085

=0.3829

i.e 38.29 % chance of the sample distribution

Hence More likely to take place will be a sample of 25 studio apartments with a mean rent between $901 and $939.

0.3829>0.0797.

Because the probability of causing above event is more than the option A.

3 0

3 years ago

If granola costs $2.20 per pound, how much does 0.8 pound of granola cost?

alexgriva [62]

Answer:

$1.76

Step-by-step explanation:

when you multiply 2.20x 0.8 you get 1.76. at first I thought division was needed, but the answer to 2.20/0.8 is 2.75- which is more than the original cost. (sorry if this is confusing but) 0.8 pound is less than 1 pound, so the answer would need to be less than 2.20.

8 0

3 years ago

Read 2 more answers

Consider the expression 16y^2 . Select the correct statement:

tiny-mole [99]

Step-by-step explanation:

Given expression is:

$16y^2$

We will solve each statement one by one to see which statements are correct.

<u>If y=3/4, the values of 16y^2 is 12</u>

Putting y = 3/4 in expression

$16y^2 = 16 *(\frac{3}{4})^2 = 16 * \frac{9}{16} = 9$

<u>If y=1/4, the values of 16y^2 is 2</u>

Putting y = 1/4 in expression

<u></u> $16y^2 = 16 *(\frac{1}{4})^2 = 16 * \frac{1}{16} = 1$ <u></u>

<u></u>

<u>If y=3/8, the values of 16y^2 is 4/9</u>

Putting y = 3/8 in expression

<u></u> $16y^2 = 16 *(\frac{3}{8})^2 = 16 * \frac{9}{64} = \frac{9}{4}$ <u></u>

<u></u>

<u>If y=1/8, the values of 16y^2 is 1/4</u>

Putting y = 1/8 in expression

<u></u> $16y^2 = 16 *(\frac{1}{8})^2 = 16 * \frac{1}{64} = \frac{1}{4}$ <u></u>

<u></u>

<u></u>

<u>If y=2/3, the values of 16y^2 is 3/4</u>

Putting y = 2/3 in expression

<u></u> $16y^2 = 16 *(\frac{2}{3})^2 = 16 * \frac{4}{9} = \frac{64}{9}$ <u></u>

<u></u>

<u>Hence,</u>

The correct statement is:

If y=1/8, the values of 16y^2 is 1/4

Keywords: Expressions, variables

Learn more about expressions at:

#LearnwithBrainly

7 0

3 years ago