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Elodia [21]
3 years ago
11

What is the answer to 42=6x+7x+3

Mathematics
1 answer:
andrey2020 [161]3 years ago
5 0

Answer:

X = 3

Step-by-step explanation:

42 = 6x + 7x + 3

42 = 13x + 3   (simplify)

-3              -3  (subtract 3)

39 = 13x

/13     /13  (divide by 13)

3 = x


Hope this helps!! Can I please have brainliest!!

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What’s 1:6 equal too in two ways
IceJOKER [234]

Hey!

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Solution:

We can get two different ways of 1:6 by add +1:+6.

1 + 1 = 6 + 6

2:12

2 + 1 = 12 + 6

3:18

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Answer:

2:12 and 3:18

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Hope This Helped! Good Luck!

7 0
3 years ago
Please no one is helping me I truly need help pls
vampirchik [111]

Answer:

104 cm^3

Step-by-step explanation:

2(1/2(6*4))+2(1/2(4*10)+(4*10)

2(1/2(24)+(2(1/2(40)+(40)

2(12)+2(20)+40

24+40+40

104 CM^3

3 0
3 years ago
I need help with this...
Mrrafil [7]

the answer is 60 :) good luckStep-by-step explanation:

5 0
3 years ago
What’s 5(x+12) equal
juin [17]
Multiply using the distributive property so it would be 5x+60
7 0
3 years ago
URGENT HELP PLEASE!
Vaselesa [24]

Answer:

(a) x=\dfrac{\pi}{8},\dfrac{3\pi}{8},\dfrac{9\pi}{8},\dfrac{11\pi}{8}

(b) x=\dfrac{3\pi}{2},\dfrac{\pi}{6},\dfrac{5\pi}{6}

Step-by-step explanation:

It is given that 0\leq x\leq 2\pi.

(a)

\sqrt{2}\sin 2x=1

\sin 2x=\dfrac{1}{\sqrt{2}}

\sin 2x=\dfrac{\pi}{4}

2x=\dfrac{\pi}{4},\dfrac{3\pi}{4},\dfrac{9\pi}{4},\dfrac{11\pi}{4}     [\because \sin x=\sin y\Rightarrow x=n\pi+(-1)^ny]

x=\dfrac{\pi}{8},\dfrac{3\pi}{8},\dfrac{9\pi}{8},\dfrac{11\pi}{8}

(b)

\csc^2 x-\csc x-2=0

\csc^2 x-2\csc x+\csc x-2=0

\csc x(\csc x-2)+1(\csc x-2)=0

(\csc x+1)(\csc x-2)=0

\csc x=-1\text{ or }\csc x=2

\sin x=-1\text{ or }\sin x=\dfrac{1}{2}         [\because \sin x=\dfrac{1}{\csc x}]

x=\dfrac{3\pi}{2}\text{ or }x=\dfrac{\pi}{6},\dfrac{5\pi}{6}

Therefore, x=\dfrac{3\pi}{2},\dfrac{\pi}{6},\dfrac{5\pi}{6}.

5 0
3 years ago
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