a bookstore had 64 copies of a magazine. yesterday it sold 5/8 of them. how many copies were sold yesterday?write your answer in simplest form.

Answers

Answer 1

Answer: 40 magazines were sold.

Related Questions

Which point lies on the graph of the boundary line of the inequality 3y + 4x< 12
The____ is the set of all values a function will accept as inputs.domainrelationrangemapping
Are there any maths genius here can help?
GCF of 24s^3, 12s^4, and 18s
The body temperatures of adults are normally distributed with a mean of 98.6° F and a standard deviation of 0.60° F. If 25 adults are randomly selected, find the probability that their mean body temperature is less than 99° F?

F(x) 5,450(1.024)^x The domain for the function that represents the amount of time the money will be in the college fund is _ the range for the function that represents the amount of money that is in the college fund is _

Answers

Answer:

1.) Domain X = all positive real numbers

2.) Range: F(x) > = 5450

Step-by-step explanation:

Given that

F(x) = 5,450(1.024)^x

Where the domain is the independent variable X and the range is the dependent variable Y or F(x)

Since the domain for the function represents the amount of time the money will be in the college fund, time cannot be negative, it will always be positive.

Therefore, domain x will be all positive real numbers.

The least domain x = 0

Substituting domain into the equation will give us a range of value:

F(x) = 5450 × ( 1.024 )^0

F(x) = 5450 × 1

F(x) = 5450

That is, the least value of range = 5450

Therefore, Range will be F(x) greater than or equal to 5450.

F(x) > = 5450

Order from least to greatest: -0.8, 2/5, 0.825, -3/5

Answers

-0.8, -3/5, 2/5, 0.825

An initial investment of $60.00 increases in value by 15% each year. Which of the following statements are true? Select all that apply.Select answers;
This function can be represented by the quadratic equation f(x)=0.15(x+60)^2
This situation can be represented by the exponential function f(x)=60 x 1.15^x
This function has no x-intercept
After 4 years the value of the investment will be $120.00
After 6 years the value of the investment will be $653.00
After 7.86 years the value of the investment will be 3 times the initial value
After 8 years the value of the investment will be $184.00

Answers

Answer: The function can be represented by the exponential function :

$f(x)=60(1+0.15)^x=60(1.15)^x$

This function has no x-intercept .

After 7.86 years the value of the investment will be 3 times the initial value .

After 8 years the value of the investment will be $184.00.

Step-by-step explanation:

The exponential growth function is given by :-

$f(x)=A(1+r)^x$ , where A is the initial value , r is the rate of growth and x is the time period.

Given: A = $60

r=15%=0.15

Now, the function can be represented by the exponential function :

$f(x)=60(1+0.15)^x=60(1.15)^x$

We know that exponential function has no intercept , thus this function has no intercept.

∴

Now, at x=4

$f(4)=60(1.15)^4\approx104.94$

Now, at x=6

$f(6)=60(1.15)^6=138.78\approx139$

Now, at x=7.86

$f(7.86)=60(1.15)^(7.86)=179.98180=3(60)$

∴ After 7.86 years the value of the investment will be 3 times the initial value

Now, at x=8

$f(8)=60(1.15)^8=183.54\approx184$

The situations can be represented by the exponential function f(x)=60x1.15^x
After 7.86 years the value of the investment will be three times the initial value (If you round to the nearest dollar)
After 8 years the value of the investment will be $184.00 (If you round to the nearest dollar)

The quantity q varies inversely with the square of m and directly with the product of r and x. When q is 2.5, m is 4 and the product of r and x is 8. What is the constant of variation?5/8
5/4
5
10

Answers

Answer: Third option is correct.

Step-by-step explanation:

Since we have given that

The quantity q varies inversely with the square of m and directly with the product fo r and x.

According to question,

$q=k(rx)/(m^2)\n\n\text{ where k denotes constant of variation}$

Since q=2.5, m=4, rx=8,

So, we put the value of all of theses in our above relation:

$q=k(rx)/(m^2)\n\n2.5=k(8)/(4^2)\n\n2.5=k(8)/(16)\n\n2.5=k(1)/(2)\n\n2.5* 2=k\n\n5=k$

Hence, Third option is correct.

q = k * (r*x)/m^2 ⇒ k = q*m^2 /(r*x)

k = 2.5 (4)^2 / 8 = 5

Answer: 5

A line passes through the point (-2, 7) and has a slope of -5. What is the value of a if the point (a, 2) is also on the line?
A. -7
B. -1
C. 1
D. 7

Answers

Answer:

B. -1

Step-by-step explanation:

A micrometer is one-millionth of a meter (0.000001): ten thousand times shorter than a centimeter (0.01). How many micrometer one is one edge of a centimeter cube?

Answers

Answer:

$1cm^3=0.000000000001mm^3$

Step-by-step explanation:

Given : 0.000001 mm = 0.01 cm

To find : How many $mm^3$ is in $1 cm^3$

Solution :

Step 1 : Given 0.000001 mm = 0.01 cm

Step 2: Cubing both side $(0.000001mm)^3 = (0.01cm)^3$

Step 3: Solve $(10^(-6))^3mm^3=(10^(-2))^3cm^3$

$\Rightarrow((10^(-6))^3)/((10^(-2))^3)mm^3=1cm^3$

$\Rightarrow(10^(-18))/(10^(-6))mm^3=1cm^3$

$\Rightarrow 10^(-18+6)mm^3=1cm^3$

$\Rightarrow 10^(-12)mm^3=1cm^3$

$\Rightarrow 0.000000000001mm^3=1cm^3$

Therefore, $1cm^3=0.000000000001mm^3$

If a cube has an edge of one centimeter and one centimeter is ten thousand times longer than a micrometer, then the edge has ten thousand micrometers.

I hope that's what you meant :)

Other Questions

Can you work this out: 14 x 14?

What s the answer? 16x-12x=2

which of the following statements best describes the effect of replacing the graph of y = f(x) with the graph of y = f(x) − 11? (5 points) the graph of y = f(x) will shift up 11 units. the graph of y = f(x) will shift right 11 units. the graph of y = f(x) will shift left 11 units. the graph of y = f(x) will shift down 11 units.

What is the slope of the line shown in the graph? A coordinate plane is shown. Points are graphed at negative 3 comma 2 and negative 1 comma negative 1. The points are connected by a line. −3 over 2 −1 over 2 3 over 2 Undefined