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prisoha [69]
3 years ago
15

Write a decimal that represents the value of one 1 bill and 5 quarters

Mathematics
2 answers:
disa [49]3 years ago
6 0

Answer: 2.25


Step-by-step explanation:


andrey2020 [161]3 years ago
5 0

Answer:

$2.25

Step-by-step explanation:

Note that 4 quarters = one dollar, which means that one quarter = 1.00/4 = 0.25

Multiply the value of 1 quarter (0.25) with the amount of quarters there are:

0.25 x 9 = 2.25

$2.25 is your answer

~

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Judy has started walking briskly everyday. if, as a result, she burned 350 calories more per day than she consumes, how many day
Contact [7]
350 calories lost per day and there are 3,500 calories in a pound
350x10=3,500
it will take Judy 100 days to lose 10 pounds.
7 0
3 years ago
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If <img src="https://tex.z-dn.net/?f=%20300cm%5E%7B2%7D%20" id="TexFormula1" title=" 300cm^{2} " alt=" 300cm^{2} " align="absmid
Artist 52 [7]
Check the picture below.  Recall, is an open-top box, so, the top is not part of the surface area, of the 300 cm².  Also, recall, the base is a square, thus, length = width = x.

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so.. that'd be the V(x) for such box, now, where is the maximum point at?

\bf V(x)=75x-\cfrac{1}{4}x^3\implies \cfrac{dV}{dx}=75-\cfrac{3}{4}x^2\implies 0=75-\cfrac{3}{4}x^2&#10;\\\\\\&#10;\cfrac{3}{4}x^2=75\implies 3x^2=300\implies x^2=\cfrac{300}{3}\implies x^2=100&#10;\\\\\\&#10;x=\pm10\impliedby \textit{is a length unit, so we can dismiss -10}\qquad \boxed{x=10}

now, let's check if it's a maximum point at 10, by doing a first-derivative test on it.  Check the second picture below.

so, the volume will then be at   \bf V(10)=75(10)-\cfrac{1}{4}(10)^3\implies V(10)=500 \ cm^3

6 0
3 years ago
Create an equivalent system of these equations and test your solution <br> x + y = 1<br> x 3y =9
ad-work [718]
An equvilent equation
remember you can do anything to an equation as long asyou do it to both sides


assuming yo have
x+y=1 and
x-3y=9
mulitply both by 2
2x+2y=2
2x-6y=18
those are equvilent



ok, solve initial

x+y=1
x-3y=9
multiply first equation by -1 and add to 2nd equation


-x-y=-1
<u>x-3y=9 +</u>
0x-4y=8

-4y=8
divide both sides by -4
y=-2

sub back
x+y=1
x-2=1
add 2
x=3


x=3
y=-2
(3,-2)

if we test it in other one

2x+2y=2
2(3)+2(-2)=2
6-4=2
2=2
yep

2x-6y=18
2(3)-6(-2)=18
6+12=18
18=18
yep


solution is (3,-2)
4 0
3 years ago
Read 2 more answers
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almond37 [142]

Answer:

14

Step-by-step explanation:

f(x)=-1/3x+13

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f(-3)=3/3+13

f(-3)=1+13

f(-3)=14

4 0
2 years ago
Events A and B are mutually exclusive. Find the missing probability.
Luden [163]

Answer:

B, 7/20

Step-by-step explanation:

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so in the union formula: AUB=A+B-A∩B

A∩B=0

we can write P(a)=x

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7/10-7/20=x

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