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Evgen [1.6K]
2 years ago
13

-3x+6y=15 and -3x-2y=-1*

Mathematics
2 answers:
wariber [46]2 years ago
8 0
How do you want this to be solved ?
Katena32 [7]2 years ago
7 0

Answer:

wcw

Step-by-step explanation:

cw

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The side length of the base of a square pyramid is 30 centimeters. The height of the pyramid is 45 centimeters. What is the volu
dybincka [34]

Answer: 450 cm³ is the volume

Step-by-step explanation:

Volume of pyramid = L x W x H divide by 3

6 0
2 years ago
Given a=-3,b=4 and c=-5, evaluate a-b-c<br><br> A.-12<br> B.-6<br> C-2
adelina 88 [10]

Answer:

C

Step-by-step explanation:

a-b-c

-3-4-(-5)

-3-4+5 [as - - = +]

-2

3 0
3 years ago
Express x% of 4 plus y% of 5 as a percentage of 11
djverab [1.8K]
X% of 4 = x*4/100 = 0.04x

y% of 5 = x*5/100 = 0.05y

x% of 4 + y% of 5 = 0.04x + 0.05y

How you express a number, n, as percentage of 11?: [n/11]*100= 9.10n %

Then make n = 0.04x + 0.05y

9.10n %= 9.10[0.04x + 0.05y] %= (0.3656x + 0.455y)%

.


 



4 0
3 years ago
Answer for 10 points
12345 [234]

Answer:

$4250

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Assume that n^2 is divisible by 3. Does it follow that n is divisible by 3
svetlana [45]

Answer: idk if there’s any specific choice, but it should be the case.

Step-by-step explanation:

if n^2 is divisible by 3, n must also be divisible by three, since its squaring n by itself. probably a bad explanation. 3^2 is 9, 9^2 is 81, 12^144. all of them are divisible by three. Basically think of it as: 9^2 is (3x3)^2. 12 is (3x4)^2. So if n^2 is divisible by 3, n should also be divisible by 3. Sorry for the bad explanation. also I hope it’s right, sorry if it’s wrong.

6 0
3 years ago
Read 2 more answers
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