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3 years ago

Solve for y and I will thank u please

Mathematics

2 answers:

madam [21]3 years ago

7 0

Answer:

y = -3x + 20

Step by step explanation:

3/4x + 1/4y = 5

<em>Subtract 3/4x on both sides</em>

1/4y = -3/4x + 5

<em>Multiply by 4</em>

y = -3x + 20

Serga [27]3 years ago

3 0

Hope this helps you 20-3x

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The Boy scouts spent 10/12 hour doing their daily exercises. They only used 1/4 hour in hiking in. How much time did they use fo

KengaRu [80]

Answer:

Step-by-step explanation:

10/12 of an hour/60 minutes = 50 minutes so they spent that amount of time doing daily exercises

1/4 of an hour/60 minutes = 15 minutes so they spend that time hiking

subtract the 15 mins of hiking from the total 50 of exercises = 35 for other body exercises

Hope this helped!

4 0

2 years ago

Read 2 more answers

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.

Troyanec [42]

Answer: 300

Step-by-step explanation:

Let the number be represented by x.

Therefore, based on the information given in the question, this can be expressed as:

36% of x = 108

36/100 × x = 108

0.36 × x = 108

0.36x = 108

x = 108/0.36

x = 300

Therefore, the number is 300

8 0

3 years ago

X+3=-1

Lilit [14]

If it is =x then the line will be vertical

3 0

3 years ago

Let x be a random variable representing percentage change in neighborhood population in the past few years, and let y be a rando

Lisa [10]

Answer:

$m=\frac{2506.833}{604.833}=4.1447$

Nowe we can find the means for x and y like this:

$\bar x= \frac{\sum x_i}{n}=\frac{77}{6}=12.833$

$\bar y= \frac{\sum y_i}{n}=\frac{587}{6}=97.833$

And we can find the intercept using this:

$b=\bar y -m \bar x=97.833-(4.1447*12.833)=44.644$

So the line would be given by:

$y=4.1447 x +44.644$

Step-by-step explanation:

$m=\frac{S_{xy}}{S_{xx}}$

Σx = 77, Σy = 587, Σx2 = 1593, Σy2 = 70,533, and Σxy = 10040.

Where:

$S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}$

$S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}$

With these we can find the sums:

$S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}=1593-\frac{77^2}{6}=604.833$

$S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i){n}}=10040-\frac{77*587}{6}=2506.833$

And the slope would be:

$m=\frac{2506.833}{604.833}=4.1447$

Nowe we can find the means for x and y like this:

$\bar x= \frac{\sum x_i}{n}=\frac{77}{6}=12.833$

$\bar y= \frac{\sum y_i}{n}=\frac{587}{6}=97.833$

And we can find the intercept using this:

$b=\bar y -m \bar x=97.833-(4.1447*12.833)=44.644$

So the line would be given by:

$y=4.1447 x +44.644$

5 0

3 years ago

Solve for x y and z i need a lot of help

Anastaziya [24]

Answer:lol

Step-by-step explanation:

lol lol lol lol

lol

6 0

3 years ago