All categories

3 years ago

Solve the system of equations:

Mathematics

1 answer:

Simora [160]3 years ago

8 0

Answer:

x1=6 , x2=1

Step-by-step explanation:

If you have any questions about the way I solved it,don't hesitate to ask

You might be interested in

What's 4.75 in a fraction into a simplest form

kaheart [24]

The answer is 3 3/4

Here's how I got my answer:

Step 1: Split the numbers apart. Which leaves us with $4 + .75$

Step 2: Find the greatest common factor between the two(25). Then divide it by 75 and 100. Which leaves us with $3/4$ (once simplified).

Step 3: Combine the whole number component with the fraction, which leaves us with our answer, 4 3/4

3 0

3 years ago

Read 2 more answers

How to find the 0 slope of a graph

denis-greek [22]

It is the center point of graph possitive and negative.

5 0

3 years ago

Read 2 more answers

A machine that is programmed to package 1.20 pounds of cereal is being tested for its accuracy in a sample of 36 cereal boxes, t

FrozenT [24]

Answer: Hence, the 95% confidence interval for the mean is (1.2004, 1.2396).

Step-by-step explanation:

Since we have given that

Mean = μ = 1.20 pounds

$\bar{X}=1.22\ pounds$

$\sigma=0.06\ pounds$

n= 36

We need to find the 95% confidence interval for the mean.

So, z = 1.96

So, confidence interval would be

$\bar{x}\pm z\dfrac{\sigma}{\sqrt{n}}\\\\=1.22\pm 1.96\times \dfrac{0.06}{\sqrt{36}}\\\\=1.22\pm 1.96\times \dfrac{0.06}{6}\\\\=1.22\pm 1.96\times 0.01\\\\=1.22\pm 0.0196\\\\=(1.22-0.0196,1.22+0.0196)\\\\=(1.2004,1.2396)$

Hence, the 95% confidence interval for the mean is (1.2004, 1.2396).

5 0

4 years ago

A woman runs 40 laps around a track in 20 minutes. What’s the unit rate?

Over [174]

Answer:

2, 2/1, 4/2, 6/3, you get it, it is the y=2x

Step-by-step explanation:

5 0

3 years ago

-2 + 0.4x = -0.2(4x+22) <br> solve

horsena [70]

X= -2
(mark brainliest if correct pls)

8 0

3 years ago