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arlik [135]
3 years ago
10

4x = 18-y, if x=2 and y=6

Mathematics
1 answer:
yarga [219]3 years ago
3 0
If you're using substitution, solve for the first variable in one of the equations, then substitute the result into another equation. your answer is no solution:

x = 2 ; y = 6

4x = 18 - y
4 (2) = 18 - 6
8 = 12

8 does not equal 12, there is no solution
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Ruben: incorrect, sign error

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Step-by-step explanation:

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If a rabbit can move 2 1/4 miles every hour, then how many hours would it take for the rabbit to go 9 miles
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P and q are complex numbers such that ∣p∣ = 2/5 x + 2 , ∣q∣ = −3/4 x − 1 , and ∣p+q∣ = 2x + 4 .
Leya [2.2K]

Answer: (b)

Step-by-step explanation:

Given

\left |  p\right |=\dfrac{2}{5}x+2

\left |  q\right |=\dfrac{-3}{4}x-1

\left |  p+q\right |=2x+4

for two complex number, z_1,z_2

\left |  z_1+z_2\right |\leq \left |  z_1\right |+\left |  z_2\right |

Apply the above the property

\Rightarrow 2x+4\leq \dfrac{2}{5}x+2-\dfrac{3}{4}x-1\\\\\Rightarrow 2x+4\leq \dfrac{8x-15x}{20}+1\\\\\Rightarrow 2x+3\leq -\dfrac{7x}{20}\\\Rightarrow x\leq -\dfrac{60}{47}

Also, the absolute value of each complex number must be greater than or equal to zero

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Taking the intersection of the above values of x, we get

x\in [-2,-\dfrac{4}{3}]  

8 0
3 years ago
What number is 10/16 of 96?
vichka [17]

Answer:

46/69

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
I need help on number 1<br> someone please help me and SHOW YOUR WORK
Tom [10]
Square has 4 sides so you would use 16 1/8 inches of ribbon per side.

So that's 16 1/8 + 16 1/8 + 16 1/8 + 16 1/8  = 64 4/8 = 64 1/2

Final answer: 64 1/2 inches
6 0
3 years ago
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