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Anna [14]
3 years ago
10

Help me out pleaseeeeee

Mathematics
2 answers:
elixir [45]3 years ago
8 0
Is it the first one?
marin [14]3 years ago
7 0

Answer:

A

Step-by-step explanation:

LCM of 5 and 3 is 15

thus, denominator is 15

2/5 = 2x3/5x3 = 6/15

1/3 = 1x5/3x5 = 5/15

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The surface area?<br> A - 216<br> B - 336<br> C - 438
vivado [14]

Answer:

B

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Ryan bought 6 apples and 9 peaches for a total of $7.86. Madi bought 4 apples and 5 peaches for $4.82. How much are apples and p
Scilla [17]
Let, x = The cost of an apple
y = The cost of a peach

6x + 9y = 7.86 - - - - - - - - 1
4x + 5y = 4.82 - - - - - - - - 2

From equation 2,
4x =4.82 - 5y
x= (4.82 - 5y) ÷ 4 - - - - - - - 3

Substitute 3 into 1,
6x + 9y = 7.86
6 [(4.82 - 5y) ÷ 4] + 9y = 7.86
(28.92 - 30 y) ÷4 + 9y = 7.86
28.92 - 30y + 36y = 31.44
6y=2.52
y= 0.42

Substitute y = 0.42 into 2
4x + 5y= 4.82
4x + 5 (0.42) = 4.82
4x + 2.1 = 4.82
4x= 2.72
x= 0.68.

Thus, an apple costs $ 0.68 and a peach costs $ 0.42.

8 0
4 years ago
Area of triangle where A=50, b=31, c=18
Mrac [35]
Use Heron's Formula:
s means semi-perimeter = (50 + 31 + 18) / 2 = 99 / 2 =
49.5
area = sq root [(s * (s-a) * (s-b) * (s-c)]
area = sq root [(49.5 * (s-a) * (s-b) * (s-c)]

This will NOT form a triangle.  The longest side (50) is greater than the sum of the other 2 sides.

Source:
http://www.1728.org/trianinq.htm

 


5 0
4 years ago
Evaluate P(3, 3) <br> 1<br> 9<br> 6
solong [7]
Hence, the value of P(3,3) is 6
5 0
3 years ago
If a 90 degree angle is a right angle, how does 360 degrees make a circle? Not for school,just for thought.
kotykmax [81]

180 is a flat line and if you turn it’s not exactly a circle it seems that way but it just rotating

8 0
4 years ago
Read 2 more answers
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