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zheka24 [161]
2 years ago
13

Which is a better buy: 3 pounds for $3.87 or 5 pounds for $6.65?

Mathematics
2 answers:
ANEK [815]2 years ago
7 0
5 pounds for 6.65 because you will get more pounds for a good amount of money.
Art [367]2 years ago
6 0
$3.87<span>÷3 is $1.29, so you are spending $1.29 per pound on that deal.

$6.65</span><span>÷5 is $1.33, so you are spending $1.33 per pound on that deal.

So, 3 pounds for $3.87 is a better buy because you are spending $1.29/pound instead of $1.33/pound.

Hope this helps! -Chat</span>
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Express answer in exact form.
Kruka [31]
We know that
<span>the regular hexagon can be divided into 6 equilateral triangles
</span>
area of one equilateral triangle=s²*√3/4
for s=3 in
area of one equilateral triangle=9*√3/4 in²

area of a circle=pi*r²

in this problem the radius is equal to the side of a regular hexagon
r=3 in
area of the circle=pi*3²-----> 9*pi in²
we divide that area into 6 equal parts------> 9*pi/6----> 3*pi/2 in²

the area of a segment formed by a side of the hexagon and the circle is equal to <span>1/6 of the area of ​​the circle minus the area of ​​1 equilateral triangle
</span>so
 [ (3/2)*pi in²-(9/4)*√3 in²]

the answer is
 [ (3/2)*pi in²-(9/4)*√3 in²]

6 0
3 years ago
5p-3r=1
Brilliant_brown [7]
If you would like to solve the system of equations, you can do this using the following steps:

5p - 3r = 1     /*2
8p + 6r = 4
__________
10p - 6r = 2
<span>8p + 6r = 4
</span>__________
10p - 6r + 8p + 6r = 2 + 4
18p = 6
p = 6/18
p = 1/3

<span>5p - 3r = 1
</span>5 * 1/3 - 3r = 1
5/3 - 3r = 1
5/3 - 1 = 3r
5/3 - 3/3 = 3r
2/3 = 3r
r = 2/9

(p, r) = (1/3, 2/9)

The correct result would be <span>(1/3, 2/9)</span>.
4 0
3 years ago
Read 2 more answers
Can someone please solve FAST I have 5 minutes
Hunter-Best [27]

Answer:

no time left sorry

Step-by-step explanation:

7 0
2 years ago
Kayla buys 5 candles for x dollars each and 5 candle holders for $3.50 each. Kayla spends a total of $27.50 for the candles and
wolverine [178]
What is the question?
7 0
2 years ago
Write an equation in point-slope form of the line having the given slope that contains the given point. then graph the line
Natali5045456 [20]

Answer:

y=-\frac{5}{3}x-3

Step-by-step explanation:

Equation of straight line in point slope form is given a s

(y-y_1)=m(x=x_1)

Here

m=-\frac{5}{2}  \ and\  (x_1, y_1)=(0, -3)

(y+3)=-\frac{5}{3}(x-0)

y=-\frac{5}{3}x-3

6 0
2 years ago
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