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
Trava [24]
3 years ago
6

What does x equal In this equation?

Mathematics
1 answer:
Oliga [24]3 years ago
6 0
\frac{x}{15} = \frac{4}{5} \\ Change\ both\ fractions\ to\ a \\ common\ denominator, \\ \\ \frac{x}{15} = \frac{4 \times 3}{5 \times 3} \\ \frac{x}{15} = \frac{12}{15} \\ x = 12
You might be interested in
I WILL GIVE BRAINLIEST PLEASE HELP (picture)
Blizzard [7]

0.\overline{7}=0.777...\\\\x=0.777...\qquad\text{multiply both sides by 10}\\\\10x=7.777...\\\\\text{Make the difference}\\\\10x-x=7.777...-0.777...\\\\9x=7\qquad\text{divide both sides by 9}\\\\x=\dfrac{7}{9}\\\\Answer:\ \boxed{0.\overline{7}=\dfrac{7}{9}}\\-----------------\\You\ can\ remember\\\\\dfrac{1}{9}=0.\overline{1}\\\\\dfrac{2}{9}=0.\overline{2}\\\\\dfrac{3}{9}=0.\overline{3}\\\\\dfrac{4}{9}=0.\overline{4}\\\vdots\\\\\dfrac{8}{9}=0.\overline{8}

8 0
3 years ago
24 is 4 times as great as<br> Pls help
Vaselesa [24]

Answer:

6=k

Step-by-step explanation:

5 0
3 years ago
Eliza is a chef at a restaurant. she is making spaghetti sauce and put 21 tomatoes and 6 onions in the pot. what is the ratio of
seraphim [82]
These are not hard....u just have to pay very close attention to the wording. Keep in mind ratios can be written as fractions too.

ratio of tomatoes to onions = 21:6 which reduces to 7:2...because there is 21 tomatoes and 6 onions. (21/6 reduces to 7/2...ratios written as fractions)

However, if it would have asked the ratio of onions to tomatoes, it would have been 6:21....which reduces to 2:7....so pay attention to the wording on problems such as these

so ur answer is 7:2

6 0
3 years ago
The heights of a certain type of tree are approximately normally distributed with a mean height p = 5 ft and a standard
arsen [322]

Answer:

A tree with a height of 6.2 ft is 3 standard deviations above the mean

Step-by-step explanation:

⇒ 1^s^t statement: A tree with a height of 5.4 ft is 1 standard deviation below the mean(FALSE)

an X value is found Z standard deviations from the mean mu if:

\frac{X-\mu}{\sigma} = Z

In this case we have:  \mu=5\ ft\sigma=0.4\ ft

We have four different values of X and we must calculate the Z-score for each

For X =5.4\ ft

Z=\frac{X-\mu}{\sigma}\\Z=\frac{5.4-5}{0.4}=1

Therefore, A tree with a height of 5.4 ft is 1 standard deviation above the mean.

⇒2^n^d statement:A tree with a height of 4.6 ft is 1 standard deviation above the mean. (FALSE)

For X =4.6 ft  

Z=\frac{X-\mu}{\sigma}\\Z=\frac{4.6-5}{0.4}=-1

Therefore, a tree with a height of 4.6 ft is 1 standard deviation below the mean .

⇒3^r^d statement:A tree with a height of 5.8 ft is 2.5 standard deviations above the mean (FALSE)

For X =5.8 ft

Z=\frac{X-\mu}{\sigma}\\Z=\frac{5.8-5}{0.4}=2

Therefore, a tree with a height of 5.8 ft is 2 standard deviation above the mean.

⇒4^t^h statement:A tree with a height of 6.2 ft is 3 standard deviations above the mean. (TRUE)

For X =6.2\ ft

Z=\frac{X-\mu}{\sigma}\\Z=\frac{6.2-5}{0.4}=3

Therefore, a tree with a height of 6.2 ft is 3 standard deviations above the mean.

6 0
3 years ago
What is the equation for exponential growth in Biology?
SpyIntel [72]
The exponential growth in biology is A=Pert, where "A" is the ending amount of whatever you're dealing with , "P" is the beginning amount of that same "whatever", "r" is the growth or decay rate, and "t" is time. The formula is related to the compound-interest formula, and represents the case of the interest being "compounded continuously". 
8 0
3 years ago
Other questions:
  • How do you write 3/6 in the simplest form
    13·1 answer
  • What is the degree of the polynomial?
    11·1 answer
  • The math 1 test has 20 questions worth a total of 100 points. The test consists of multiple choice questions worth 4 points each
    10·1 answer
  • A test has multiple choice questions with 5 choices for each answer, only one answer is correct for each question. Suppose a stu
    9·1 answer
  • PLEASE HELP!! WILL GIVE BRAINLIEST FOR BEST ANSWER!! Please solve #30 and #31.
    14·1 answer
  • Put down ur best memes here!<br><br> And help me.. whats 0+0
    12·2 answers
  • Right triangle XYZ has right angle Z. If the sin(X)=1213<br> , what is the cos(X)
    11·1 answer
  • The area of the large rectangle is twice the area of the small rectangle. What is the value of x?Two rectangles are shown. The l
    7·1 answer
  • Help me quickkkk please
    9·1 answer
  • 2x + 3v= 13<br> 4x-V= -2<br> Solve the simultaneous equations
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!