1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ratling [72]
2 years ago
10

Solve. (x + 5)/3 = 4 for x.

Mathematics
2 answers:
Nonamiya [84]2 years ago
8 0

Answer:

x = 7

Step-by-step explanation:

  1. Multiply each side by 3 to cancel out the 3 under x + 5. It should now look like this: x + 5 = 12
  2. Subtract 5 from each side, so it now looks like this: x = 7

I hope this helps!

cestrela7 [59]2 years ago
6 0

Answer:

X = 7

Step-by-step explanation:

You might be interested in
During a concert the temperature should not rise above 40°C.
zaharov [31]

Answer:

the answer is 55

Step-by-step explanation:

if you subtract 40 degrees from 95 degrees you get 55 degrees. There are plenty of other ways to do that problem but i have a little bit of time. SORRY!

                                                                       -  I hope that helped

6 0
3 years ago
7 d^2 +10 when d = 3
user100 [1]

Answer:

d = 3/7 = 0.429

d = 1

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
A/ab-bsquare + b/ab-asquare?​
lord [1]

Answer:

\dfrac{(a+b)}{ab}

Step-by-step explanation:

The given expression is :

\dfrac{a}{ab-b^2}+\dfrac{b}{ab-a^2}

It can be solved as follows :

\dfrac{a}{ab-b^2}+\dfrac{b}{ab-a^2}=\dfrac{a}{b(a-b)}+\dfrac{b}{a(b-a)}\\\\=\dfrac{a}{b(a-b)}+\dfrac{b}{-a(-b+a)}\\\\=\dfrac{1}{a-b}(\dfrac{a}{b}-\dfrac{b}{a})\\\\=\dfrac{a^2-b^2}{ab(a-b)}\\\\=\dfrac{(a-b)(a+b)}{ab(a-b)}\\\\=\dfrac{(a+b)}{ab}

So, the solution of the given expression is equal to \dfrac{(a+b)}{ab}.

7 0
3 years ago
A machine that fills beverage cans is supposed to put 12 ounces of beverage in each can. The standard deviation of the amount in
erica [24]

Answer:

\chi^2 =\frac{10-1}{0.0144} 0.0217 =13.54

The degrees of freedom are:

df=n-1=10-1=9

Now we can calculate the p value using the alternative hypothesis:

p_v =2*P(\chi^2 >13.54)=0.279

Since the p value is higher than the signficance level assumed of 0.05 we have enough evidence to FAIL to reject the null hypothesis and there is no evidence to conclude that the true deviation differs from 0.12 ounces

Step-by-step explanation:

Assuming the following data:"12.14 12.05 12.27 11.89 12.06

12.14 12.05 12.38 11.92 12.14"

We can calculate the sample deviation with this formula:

s =\sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}

n=10 represent the sample size

\alpha=0.05 represent the confidence level  

s^2 =0.0217 represent the sample variance

\sigma^2_0 =0.12^2= 0.0144 represent the value to verify

Null and alternative hypothesis

We want to determine whether the standard deviation differs from 0.12 ounce, so the system of hypothesis would be:

Null Hypothesis: \sigma^2 = 0.0144

Alternative hypothesis: \sigma^2 \neq 0.0144

The statistic can be calculated like this;

\chi^2 =\frac{n-1}{\sigma^2_0} s^2

\chi^2 =\frac{10-1}{0.0144} 0.0217 =13.54

The degrees of freedom are:

df=n-1=10-1=9

Now we can calculate the p value using the alternative hypothesis:

p_v =2*P(\chi^2 >13.54)=0.279

Since the p value is higher than the signficance level assumed of 0.05 we have enough evidence to FAIL to reject the null hypothesis and there is no evidence to conclude that the true deviation differs from 0.12 ounces

7 0
3 years ago
Who can help me ????.<br>instruction find the missing length.​
djverab [1.8K]

Answer:

19 is the answer i think.

7 0
3 years ago
Other questions:
  • Which function represents the inverse function below? please help ​
    15·1 answer
  • Convert to a percent 4.44 3/5
    6·1 answer
  • The temperature has been going down at a constant rate. In 3 hours it went down 15 degrees. Which expression best shows the temp
    6·2 answers
  • Two similar rectangular prisms have a scale factor of 4:1. The smaller prism has a volume of 6 cubic centimeters. What is the vo
    7·2 answers
  • The sales tax in New York is 8.25%. About how much will a $66.00 pair of shoes cost, including sales tax?
    7·1 answer
  • What is the volume of the cylinder below?
    11·2 answers
  • In triangle ABC, BD bisects Angle ABC and AD is similar to CD. Tell what kind of triangle ABC must be
    9·1 answer
  • Drag each tile to the correct box.
    13·1 answer
  • "select all the numbers that are solutions to the equation x^3=27"
    8·1 answer
  • What 34 divided by 1,265
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!