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3 years ago

2x + y = 3

Mathematics

1 answer:

Arlecino [84]3 years ago

3 0

It’s d
You just have to keep on substitutes x or y . I added a picture hope that helps

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Solve for the value of: 14/5 =z/25

ryzh [129]

Answer:

Solve for

by simplifying both sides of the equation, then isolating the variable.

Step-by-step explanation:

Hope I helped

8 0

2 years ago

A random sample of 12 recent college graduates reported an average starting salary of $54,000 with a standard deviation of $6,00

Marianna [84]

Answer: a.) $50188 to $57812

Step-by-step explanation: Confidence Interval (CI) is an interval of values in which we are confident the true mean is in.

The interval is calculated as

x ± $z\frac{s}{\sqrt{n} }$

a. For a 95% CI, z-value is 1.96.

Solving:

54,000 ± $1.96.\frac{6000}{\sqrt{12} }$

54,000 ± $1.96\frac{6000}{3.464}$

54,000 ± 1.96*1732.102

54,000 ± 3395

This means the interval is

50605 < μ < 57395

With a 95% confidence interval, the mean starting salary of college graduates is between 50605 and 57395 or from 50188 to 57812$.

b. The mean starting salary for college students in 2017 is $50,516, which is in the confidence interval. Therefore, since we 95% sure the real mean is between 50188 and 57812, there was no significant change since 2017.

4 0

2 years ago

Peter has seven eights of a bag of bubblegum and five eights of a bag of gummy bears. How much candy does Peter have in total? U

monitta

Answer:

Step-by-step explanation:

7/8+5/8

=7+5/8(these numbers are like fractions)

=twelve eighths bags is your answer

4 0

2 years ago

Read 2 more answers

On 8(x - 2) + 3 = -61?

DochEvi [55]

Answer:

Hey there!

8(x-2)+3=-61

8(x-2)=-64

x-2=-8

x=-6

Let me know if this helps :)

3 0

3 years ago

Read 2 more answers

Please help!!!! i will give brainliest

FromTheMoon [43]

Answer:

The volume of a cylinder:

$V \approx 150.796$ $ft^3$

Step-by-step explanation:

To find the volume of a cylinder, you need the this formula:

$V = \pi r^2h$

-Use the given height and radius for the formula:

$V = \pi 4^2 3$

-Then, solve the formula:

$V = \pi \times 4^2 \times 3$

$V = \pi \times 16 \times 3$

$V = \pi \times 48$

$V = 48\pi \approx 150.796$

So, the volume of a cylinder is approximately $150.796$ $ft^3$ .

7 0

3 years ago