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Firdavs [7]
3 years ago
14

What is the answer to n+ 9 =9

Mathematics
2 answers:
max2010maxim [7]3 years ago
6 0
Answer is N=0

Hope it help:)
Eva8 [605]3 years ago
3 0
N=0 hope this helpssss
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Use substitution to solve the linear system of equations.
zzz [600]
<span>5x - y = 15 (1)
-10x+2y=-30 (2)

multiply (1) by 2

10x - 2y = 30
</span>-10x + 2y = -30 (2)
<span>---------------------------add
0 = 0

answer
</span><span>infinitely many solutions</span><span>

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5 0
3 years ago
Which equation has x=4 as the solution
erma4kov [3.2K]
(1) step by step below

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3 years ago
In Exercises 51−56, the letters a, b, and c represent nonzero constants. Solve the equation for x
Nonamiya [84]

Answer:

x = -8/b

Step-by-step explanation:

2bx – bx = -8

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5 0
3 years ago
from the edge of a cliff 180m high, the angles of depression of two boats at sea are 43° and 52° respectively what is the distan
MrRa [10]

tan 52 = 180/a; a = 180/tan 52

tan 43 = 180/b; b = 180/tan 43

you need to calculate, a-b = 180/tan 52 - 180/tan 43

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8 0
3 years ago
Cam was bom weighing 8.6 pounds. Every day, he gained the same amount of weight. After 30 days, he weighed 14.9
guajiro [1.7K]

Answer:

So I'm not entirely sure about this one, but I believe he gained 0.21 pounds each day for 30 days

Step-by-step explanation:

Since Cam was born weighing 8.6 pounds and after 30 days weighed 14.9, subtract 14.9-8.6 to find how much he gained.

14.9 - 8.6 = 6.3

Now that we know how much he gained, we have to find out how much he gained per day for 30 days. To do this, divide 6.3 by 30

6.3 / 30 = 0.21

To make sure this answer is correct, multiply 0.21 by 30 and add that to 8.6. It should equal 14.9.

I hope this helps!

7 0
3 years ago
Read 2 more answers
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