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3 years ago

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In a survey of 500 people, 31% said they were afraid of flying. What decimal represents the number of people who said they were

afraid of flying?

1 answer:

Elden [556K]3 years ago

6 0

Answer:

.31

Step-by-step explanation:

155 / 5 31/100

500/ 5

31÷100

Long Division for 31 divided by 100

round to a Max of 3 Decimal gives us

=0.31

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Please help answer this question

jasenka [17]

Answer:

9ms

Step-by-step explanation:

4 0

2 years ago

a company uses two vans to transport workers from a free parking lot to the workplace between 7:00 and 9:00 am . one van has 6 m

olganol [36]

Y - x = 6
y + 2x = 57

2y - 2x =12
y + 2x = 57

∴3y = 69
y = 23

23 - x = 6
-x = -17
x =17

large van = 23
small van = 17

4 0

3 years ago

Read 2 more answers

Find the distance between (4,6) and (-2, -2)

Nataly [62]

Answer:

$\displaystyle d = 10$

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

<u>Algebra II</u>

Distance Formula: $\displaystyle d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Step-by-step explanation:

<u>Step 1: Define</u>

Point (4, 6)

Point (-2, -2)

<u>Step 2: Find distance </u><em><u>d</u></em>

Simply plug in the 2 coordinates into the distance formula to find distance <em>d</em>

Substitute [DF]: $\displaystyle d = \sqrt{(-2-4)^2+(-2-6)^2}$
Subtract: $\displaystyle d = \sqrt{(-6)^2+(-8)^2}$
Exponents: $\displaystyle d = \sqrt{36+64}$
Add: $\displaystyle d = \sqrt{100}$
Evaluate: $\displaystyle d = 10$

8 0

3 years ago

Read 2 more answers

Bob has some 10 lb weights and some 3 lb weights. Together, all his weights add up to 50 lbs. If x represents the number of 3 lb

olga2289 [7]

Answer:

3x = 50 - 10y

Step-by-step explanation:

Here, x represents the number of 3 lb weights and y represents the number of 10 lb weights,

So, total weight of 3 lb weights = 3x

And, the weight of 10 lb weights = 10y

Total weight of all his weights = 3x + 10y

According to the question,

Total weight = 50 lb,

⇒ 3x + 10y = 50

Or 3x = 50 - 10y

Which is the required equation.

Second option is correct.

3 0

3 years ago

A powerful computer is purchased for $2000, but loses 20% of its value each year. How much will it be worth 4 years from now?

Jet001 [13]

Answer:

(A)Decay

(b)0.8

(c)First Term

(d) $f(t)=2000(0.8)^t$

(e)$819.20

Step-by-step explanation:

The exponential function for modelling growth or decay is given as:

$A(t)=A_o(1\pm r)^t$ ,

Where:

Plus indicates growth and minus indicates decay.

$A_o$ is the Initial Value\\r is the growth/decay rate\\t is the time period$

For a powerful computer that was purchased for $2000, but loses 20% of its value each year.

(a)Since it loses value, it is a decay.

(b)Multiplier

Its value decays by 20%.

Therefore, our multiplier(1-r) =(1-20&)=1-0.2

Multiplier =0.8

(c)$2000 is our First term (or Initial Value $A_o$ )

(d)The function for this problem is therefore:

$f(t)=f_o(1- r)^t\\f(t)=2000(1- 0.2)^t\\\\f(t)=2000(0.8)^t$

(e)Since we require the worth of the computer after 4 years,

t=4 years

$f(4)=2000(0.8)^4\\f(4)=\$819.20$

6 0

3 years ago