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3 years ago

Solve for me please....... 4x-z=y for x

Mathematics

2 answers:

vlada-n [284]3 years ago

6 0

4x-z=y
4x=y+z
x=(y+z)/4

Vlada [557]3 years ago

5 0

4x-z=y

4x=y+z

x=(y+z)/4

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Find the slope of a line through a pair of points (2,-3) and (8,4)

vredina [299]

Slope of any line (m) can be calculated as follows:
m = (y2-y1) / (x2-x1)
from the given points:
(x1,y1) = (2,-3)
(x2,y2) = (8,4)
substituting in the equation, we can get the slope as follows:
m = (4--3) / (8-2) = (4+3) / (8-2) = 7/6

4 0

3 years ago

When Lorenzo finished his exam last week, he thought the test was over. But the instructor put z-scores on each student's paper

Anarel [89]

Answer:

Lorenzo's score on exam was 75.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 61

Standard Deviation, σ = 8

We are given that the distribution of test score is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

z-score = 1.75

We have to find the value of x.

Putting values, we get

$1.75 = \dfrac{x - 61}{8}\\\\x = 1.75(8) + 61\\x = 75$

Thus, Lorenzo's score on exam was 75.

5 0

4 years ago

Plz help me with this math problem

storchak [24]

Answer:

leg 1 is on 6 see look at the dot thats on x and leg 1 on y is 1 so 6/1 then for number 2 9/5

8 0

3 years ago

If you can, give the explanation. I'm finding these very difficult.

Goryan [66]

Answer:

Gustavo

Step-by-step explanation:

if anything this looks like 38-19n, if the first term is n=1.

But as that isn't an option, gustavo should be correct, as his sequence would go down by 19 each time (yuki's would go up by 19 each time, not down like the sequence shows)

3 0

3 years ago

If it takes 90 minutes to wait in line to purchase 12 eggs, how many eggs could you purchase if you waited 120 minutes?

AlekseyPX

Answer:

16 eggs

Step-by-step explanation:

we know that

it takes 90 minutes to wait in line to purchase 12 eggs

using proportion

Find out how many eggs could you purchase if you waited 120 minutes

$\frac{90\ min}{12\ eggs}=\frac{120\ min}{x\ eggs}\\\\x=12(120)/90\\\\x= 16\ eggs$

8 0

4 years ago