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3 years ago

A sheet of 20 stamps cost $9.20. What is the cost of each stamp?

Mathematics

1 answer:

Bess [88]3 years ago

7 0

To find the cost of one stamp, divide the total cost by the total number of stamps bought:

9.20 / 20 = 0.46

Each stamp cost 46 cents.

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Compute the missing data in the table for the following exponential function f (x) = (one-fourth) Superscript x.

aliina [53]

Answer:

$F(4) = \frac {1}{256}$

Step-by-step explanation:

Given the following mathematical function;

$F(x) = \frac {1}{4^{x}}$

When x = 1

$F(1) = \frac {1}{4^{1}}$

$F(1) = \frac {1}{4}$

When x = 2

$F(2) = \frac {1}{4^{2}}$

$F(2) = \frac {1}{4*4}$

$F(2) = \frac {1}{16}$

When x = 3

$F(3) = \frac {1}{4^{3}}$

$F(3) = \frac {1}{4*4*4}$

When x = 4

$F(4) = \frac {1}{4^{4}}$

$F(4) = \frac {1}{4*4*4*4}$

$F(4) = \frac {1}{256}$

When x = 5

$F(5) = \frac {1}{4^{5}}$

$F(5) = \frac {1}{4*4*4*4*4}$

$F(5) = \frac {1}{1024}$

8 0

2 years ago

Y=2x-4 plz help 10. points

pantera1 [17]

Answer by JKismyhusbandbae: I don't know what you are trying to have me find but I found the slope.

Slope: 2

Y-Intercept: − 4

8 0

2 years ago

-5/2/-19/10 Pls Answer this question I can't figure it out!!!

Rus_ich [418]

Answer:

decimal result is 0.6 but fraction wise its 3/5

7 0

2 years ago

I NEED HELP WITH THIS PLEASE HELP ME

vekshin1

Answer:

156 minutes

Step-by-step explanation:

So we need to create an equation to represent how Frank's phone company bills him

I will denote "y" as the total for his bill
I will denote "x" as the number of minutes Frank uses

So the phone company charges an $8 monthly fee, so this value remains constant and will be our "y-intercept"

They then charge $0.06 for every minute he talks, this will be our "slope"

Combining everything into an equation, we have: y = 0.06x + 8

Now since we were given Franks phone bill total and want to figure out how many minutes he used, we just need to solve the equation for x and plug in our known y value

y = 0.06x + 8 → y - 8 = 0.06x → $x=\frac{y-8}{0.06}$
Then plugging in our y value we get $x=\frac{17.36-8}{0.06}=\frac{9.36}{0.06}= 156$

Frank used up a total of 156 minutes

3 0

2 years ago

In the plan of a proof, you should use the plan that was used on previous theorems. A) always B) sometimes C) never

Vikentia [17]

In the plans of a proof, you should SOMETIMES used the plan that was used on previous theorems

If we keep using the plan that used in previous theorems, the knowledge that revolve around the mankind will not be developed as it is today

hope this helps

5 0

3 years ago

Read 2 more answers