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IrinaK [193]
3 years ago
13

A penny collection contains twelve 1967 pennies, seven 1968 pennies, and eleven 1971 pennies. If you are to pick some pennies wi

thout looking at the dates, how many must you pick to be sure of getting at least six pennies from the same year
Mathematics
1 answer:
IgorC [24]3 years ago
5 0

Answer:

12 because of a 40 percent of 20 as 12 we know that there is a possiblity of almost all of the 12 to be 1967.

Step-by-step explanation:

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Marlene rides her bike at a rate of 16 miles per hour. The time in hours that she rides is represented by the variable t, and th
White raven [17]

Let

t--------> the time in hours

d-------> the distance in miles

we know that

d=16t

this is a linear equation that represent the scenario

in this equation the independent variable is the time t and the dependent variable is the distance d

The distance's equation in function notation is equal to

f(t)=16t

Using a graph tool

see the attached figure

The domain of the function is the interval----------> [0,∞)

t\geq0

The range of the function is the interval------->  [0,∞)

f(t)\geq0

<u>Statements</u>

<u>a) The independent variable, the input, is the variable d, representing distance</u>

The statement is false

Because the  independent variable is the variable t

<u>b) The distance traveled depends on the amount of time Marlene rides her bike</u>

The statement is true

Because the distance's equation in function notation is equal to

f(t)=16t

<u>c) The initial value of the scenario is 16 miles per hour</u>

The statement is false

Because 16 represent the rate or  the slope of the linear equation

<u>d) The equation t = d + 16 represents the scenario</u>

The statement is false

Because, the scenario is represented by the function f(t)=16t

<u>e) The function f(t) = 16t represents the scenario</u>

The statement is true

8 0
3 years ago
Read 2 more answers
My last review question before the big test! Can anyone explain this one to me? It's percentages cri
katrin2010 [14]

Answer:

B. 5000

Step-by-step explanation:

To solve this I did 873x10.99 and got 9594.27

I did 52% of 9594.27 and got 4989.02 which means it'll be about 5000

7 0
3 years ago
Read 2 more answers
Ellen purchased two binders for $1.25 each, two binders for $3.75 each, two packs of paper for $1.50 each, four packs of pens fo
laiz [17]

Answer:

$29

Step-by-step explanation:

2*1.25

2*3.75

2*1.5

4*1.75

4*2.25

multiply these and add them all up and you get 29

6 0
4 years ago
Read 2 more answers
Which graph represents the solution to the given system y=-3x-4 and y=3/4x+2
tatyana61 [14]

Answer:

See attached picture

Step-by-step explanation:

To graph, use y=mx+b as a guide where m is the slope and b is the y-intercept.

y=-3x-4

Start at -4 on the y-axis. Plot a point. This is the y-intercept b. From this point count down 3 units and 1 unit to the right. Plot this point and connect.

y=3/4x +2

Start at 2 on the y-axis. Plot a point. This is the y-intercept b. From this point count up 3 units and 4 units to the right. Plot this point and connect.

5 0
4 years ago
Which ordered pair is a solution of the equation below? y=x-3
AleksandrR [38]
(4,1) is a possible solution. Hope this helps. :)
5 0
4 years ago
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