4 years ago

|5z−8|=7

Mathematics

1 answer:

Naddika [18.5K]4 years ago

4 0

Answer:

z=5.86666666667

Step-by-step explanation:

15z-81=7

15z=88

15/15=88/15

z=5.86666666667

You might be interested in

What is the quotient of 4.653 x 107 and 7.05 x 103 expressed in scientific<br> notation?

mel-nik [20]

46530000 / 7050 = 6600 = 6.6 x 10^3

6 0

3 years ago

How many 18-pound patties can she make from 78of a pound of hamburger? We can 7 patties out of 78pound of hamburgers

myrzilka [38]

Answer: 4.3

Step-by-step explanation:

she can make 4.3, 18 pound patties out of a 78 pound of hamburger

3 0

3 years ago

Find the slope of the line passing through the points (-8, -3) and (-3, 4)

mestny [16]

Answer: 7/5

Step-by-step explanation:

6 0

4 years ago

An analysis of the grades on the first test in History 101 revealed that they approximate a normal curve with a mean of 75 and a

QveST [7]

Answer:

b. 85

Step-by-step explanation:

Average grade (μ) = 75

Standard deviation (σ) = 8

Assuming a normal distribution, the z-score corresponding to the upper 10% of the test grades is z = 1.28.

The minimum grade 'X' within the top 10% is given by:

$z=\frac{X-\mu}{\sigma}\\1.28=\frac{X-75}{8}\\X=85.24$

Rounding to the nearest percent, the dividing point between an A and a B grade is 85.

3 0

3 years ago

4 is a multiple of both 2 and 4. Write an equivalent fraction for 1/2 using fourths.

Svetradugi [14.3K]

Answer:

Step-by-step explanation:

1/2*2=2/4

1/2*4=4/8

7 0

4 years ago

Read 2 more answers