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mixas84 [53]
3 years ago
14

Katrina drinks 0.5 gallons of water per day. Which expression shows how to find the number of cups of water she drinks in a week

?
There are 16 cups in a gallon.

StartFraction 0.5 gallons Over 1 day EndFraction × StartFraction 16 cups Over 1 gallon EndFraction × StartFraction 1 week Over 7 days EndFraction
StartFraction 0.5 gallons Over 1 day EndFraction × StartFraction 1 gallon Over 16 cups EndFraction × StartFraction 7 days Over 1 week EndFraction
StartFraction 0.5 gallons Over 1 day EndFraction × StartFraction 1 gallon Over 16 cups EndFraction × StartFraction 1 week Over 7 days EndFraction
StartFraction 0.5 gallons Over 1 day EndFraction × StartFraction 16 cups Over 1 gallon EndFraction × StartFraction 7 days Over 1 week EndFraction
Mathematics
2 answers:
makkiz [27]3 years ago
7 1

Answer:

Step-by-step explanation:

0.5 gal/day * 7 days/week = 3.5 gal/week

3.5 gal * 16 cups/gal = 56 cups

posledela3 years ago
5 0

Answer:

C

Step-by-step explanation:

just took the test! hope this helps.

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tresset_1 [31]

Step-by-step explanation:

Hello!
I'd love to help you learn.
I see the formula attached is 4*(\frac{1}{2})^{x} =-2^{x}-1\\

This problem is explaining you to graph, since algebraically it's a little more harder to try and find the solution.

Since they're both equal to each other, we can assign a variable like y, so we can make them into two individual lines.

You can use your scientific calculator to graph lines like this, or otherwise there are online sources (Desmos helps alot!) which can graph two equations as so.

Now that we have the corresponding system of equations, we can graph both.

y=4*(\frac{1}{2})^x\\ y=-2^x-1
Let's graph them on Desmos on the same plane. The answers are attached. Red is the first equation, blue is the second.

What determines the solutions of a system of equations?

-No solution: the two lines will never intersect/does not intersect ever, which means that there are no set point where it satisfies both equations.

-One solution: the two lines intersect once and only once, meaning that there is that one set point where the x and y values both satisfy both equations.

-Multiple solutions: the two lines will intersect each other multiple times, meaning there are multiple set points where the x and y values satisfy both equations. You usually will not have to worry about these problem sets.

-Infinite solutions: the two lines are both the same line, which means every x and y value will satisfy both equations.

Looking at the solution attached, we can see that there are no places where a system of equations intersect, therefore ruling it that they have no solution.

And to answer your last question, an asymptote is a imaginary line in which a equation can approach closely and closely, but will never touch that imaginary line. Think of a line at y=\frac{1}{x}. When you graph it, you can see that the two lines never ever EVER intersect the y-axis, or x=0; giving that x=0 as a vertical asymptote.

5 0
2 years ago
(I'd like the quick and short answer please a long explaination is unnecessary)
professor190 [17]

Answer:

(-3;-2)

Step-by-step explanation:

5 0
3 years ago
Integer that describes debit of $40
Sladkaya [172]
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Feel free to ask further questions!
3 0
3 years ago
The rabbit population in a certain area is 200% of last year's population.There are 1,000 rabbits this year.how many were there
alexandr1967 [171]

the answer is 200%x=1000 which is =500 when you divide 1000 by 2.  So 500 rabbits last year

8 0
3 years ago
How many whole numbers are there, whose squares and cubes have the same number of digits?
Naddik [55]

Answer:

there are only 4 whole numbers whose squares and cubes have the same number of digits.

Explanations:

let 0, 1, 2 and 4∈W (where W is a whole number), then

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1^2=1, 1^3=1,

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You can see from the above that only four whole numbers are there whose squares and cubes have the same number of digits







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