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3 years ago

If x + 3y = 7 and y = 2, then x equals

Mathematics

2 answers:

borishaifa [10]3 years ago

6 0

Answer:

Step-by-step explanation:

x + 3y = 7

x + 3y = 2

3y = 3 x y

y = 2

3 x 2 = 6y

x + 6 = 7

7 - 6 = 1

x = 1

Plz give brainliest

Vaselesa [24]3 years ago

5 0

The answer is one . 3 times 2 is 6. And you know 6+1 =7

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Jobisdone [24]

Answer:

Factored form is 4x(2x+3)

Step-by-step explanation:

$8x^2 + 12x$

The factors are

8x^2 ----> 2*2*2*x*x

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GCF is 2 * 2 * x= 4x

Now we factor out GCF from 8x^2 + 12x

When we factor out GCF, divide each term by 4x

$4x(\frac{8x^2}{4x} +\frac{12x}{4x})$

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7 0

3 years ago

Find the value of x.

Shalnov [3]

Answer:

let the other number be x

x+2=65

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I hope it helps you

3 0

2 years ago

Read 2 more answers

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ZanzabumX [31]

Answer:

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Step-by-step explanation:

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4 years ago

Consider the following hypothesis test. H0: μ = 15 Ha: μ ≠ 15 A sample of 50 provided a sample mean of 14.11. The population sta

bearhunter [10]

Answer: -2.10

Step-by-step explanation:

Given : $H_0:\mu=15$

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Sample size : n= 50, since the sample size is greater than 30 , so we apply z-test.

Sample mean : $\overline{x}=14.11$

Standard deviation : $\sigma= 3$

The test statistic for population mean :-

$z=\dfrac{\overline{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}$

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4 years ago

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Semmy [17]

Answer:

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Step-by-step explanation:

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3 years ago