All categories

3 years ago

What is the answer to 7b-b=-6

2 answers:

8 0

Answer: B= -1
•••Simplify both sides of the problem. 7b−b=−6
•••Now we can simplify step by step.
7b−b=−6
7b+−b=−6
(7b+−b)=−6
6b=−6
•••Divide both sides by 6.
6b/6=−6/6 and that equels -1.
So b= -1
Hope this helps!

sergejj [24]3 years ago

3 0

6b=-6
b=-1
my answer need to be long, that is why I write this sentence

You might be interested in

Write an equation and solve. Round to the nearest hundredth where necessary.

mixas84 [53]

Answer:

its is c.

Step-by-step explanation:

it c because 25% needs to be a decimal to be able too multiply.and when you get that done then it is 0.25 x 75=18.75

5 0

3 years ago

Which phrases represent the expression k/2 - 5

Contact [7]

Answer:

K over two minus five

Step-by-step explanation:

I think?

3 0

3 years ago

Solve: (x ÷ 4) + 8 = 38

Rainbow [258]

First you have to rewrite the equation:
(x ÷ 4) + 8 = 38

Second you have to write the division as fraction:
(¼x) + 8 = 38

Third you have to take off the unecessary bracket:

¼x + 8 = 38

Fourth multiply 8 and 38 by 4
x + 32 = 152

Fifth step move the constant to the right hand and change the sign.
x = 152 - 32

Then subtract:

x = 120

Hope this helps :))

5 0

3 years ago

A research company desires to know the mean consumption of meat per week among people over age 23. A sample of 164 people over a

Elan Coil [88]

Answer:

The 80% confidence interval for the mean consumption of meat among people over age 23 is between 4 and 4.2 pounds.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.8}{2} = 0.1$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.1 = 0.9$ , so $z = 1.28$

Now, find M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

$M = 1.28*\frac{0.7}{\sqrt{164}} = 0.07$

The lower end of the interval is the mean subtracted by M. So it is 4.1 - 0.07 = 4.03 pounds

The upper end of the interval is the mean added to M. So it is 4.1 + 0.07 = 4.17 pounds

Rounded to one decimal place

The 80% confidence interval for the mean consumption of meat among people over age 23 is between 4 and 4.2 pounds.

8 0

3 years ago

What is the measure of a base angle of an isosceles triangle if the measure of the vertex angle is 42 and the two congruent side

Sidana [21]

If vertex angle is 42, and the base angles are congruent, this is an isosceles triangle, they each measure: 180-42/2. They each measure 69 degrees. The length of sides don't matter.

7 0

4 years ago

Read 2 more answers