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Lelu [443]
3 years ago
8

Y = x + 3 4x + y = 18

Mathematics
1 answer:
Drupady [299]3 years ago
4 0

Answer:

x=3

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

4x+x+3=18

(4x+x)+(3)=18(Combine Like Terms)

5x+3=18

5x+3=18

Step 2: Subtract 3 from both sides.

5x+3−3=18−3

5x=15

Step 3: Divide both sides by 5.

5x/5 = 15/5

x=3

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Step-by-step explanation:

Remember that the sum of angles on a straight line are supplementary. (180°)

Therefore 3x + 2 + 6x - 20 = 180.

=> 9x - 18 = 180

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3 0
3 years ago
A cone with volume 1350 m³ is dilated by a scale factor of 1/3.
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450

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Natasha2012 [34]

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Step-by-step explanation:

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Identify the type of hypothesis test below. H0:X=10.2, Ha:X&gt;10.2 Select the correct answer below: The hypothesis test is two-
Ganezh [65]

Answer:

The hypothesis test is right-tailed

Step-by-step explanation:

To identify a one tailed test, the claim in the case study tests for the either of the two options of greater or less than the mean value in the null hypothesis.

While for a two tailed test, the claim always test for both options: greater and less than the mean value.

Thus given this: H0:X=10.2, Ha:X>10.2, there is only the option of > in the alternative claim thus it is a one tailed hypothesis test and right tailed.

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4 0
3 years ago
If a equals 4b - 15 what is b
nlexa [21]

Answer:

b = a + 3.75

Step-by-step explanation:

a = 4b - 15

You are solving for b. Isolate the b. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS. First, add 15 to both sides

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Next, divide 4 from both sides. Remember to divide from all terms.

(4a + 15)/4 = (4b)/4

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b = a + 15/4

b = a + 3.75 is your answer

~

7 0
3 years ago
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