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
Valentin [98]
3 years ago
8

Solve X/15 = 4/5. Solve for x

Mathematics
2 answers:
Inessa05 [86]3 years ago
5 0

When you have two fractions equal to each other, you can cross multiply. So, multiply x by 5 and 4 by 15.

5x = 60

Divide both sides by 5.

x = 12.

Roman55 [17]3 years ago
4 0

Answer:

x=12

Step-by-step explanation:

You might be interested in
Can teachers see how much time you spend on Delta Math?
NARA [144]

Answer:

Yes

Step-by-step explanation:

Short answer- yes.

Long answer- The Student Last Action feature allows teachers to see the last date and time that a student did something on DeltaMath. DeltaMath has several tools that help teachers manage student accounts. Once a student's account is created, a teacher can add the student to one or more classes.

7 0
3 years ago
What is the true solution to the equation below? In e^in x + in e^in x^2 = 2 in 8
mariarad [96]
To solve the given equation, w need to review some rules:
(1) \ ln \ e = 1 \\ 
(2) \ ln \  b^{a} = a*ln \ b \\
(3) \ ln \ a + ln \ b = ln \ (ab) \\
(4) \ ln \ a - ln \ b = ln \  \frac{a}{b}  \\

The given equation is :
ln \  e^{ln \ x} + ln \  e^{ln \  x^{2}} = 2 \ ln \ 8
ln \ x * ln \ e + ln \  x^{2} * ln \ e = 2 \ ln \ 8  ⇒⇒⇒⇒ rule (2)
ln \ x + ln \  x^{2} = ln \  8^{2}  ⇒⇒⇒⇒ rule (1) and rule (2)

ln \ ( x*  x^{2} ) = ln \ 64          ⇒⇒⇒⇒ rule (3)
removing the nature logarithm from both sides

x^{3} = 64 =  4^{3}
∴ x = 4


So, the correct answer is option (2) ⇒⇒⇒⇒ x = 4


5 0
3 years ago
Read 2 more answers
18-4y=42 help, please?
juin [17]

18-4y=42

4y = 18-42

4y=-24

y = - 6

5 0
3 years ago
the price of an article is marked at 25% above the cost price if it is sold at the profit of 125 after allowing 15% discount wha
Leni [432]

Answer:

2125

Step-by-step explanation:

CP= x

MP= x+25%= 1.25x

SP= MP-15%= 1.25x*0.85= 1.0625x

SP- CP= 125

  • 1.0625x-x= 125
  • 0.0625x=125
  • x= 125/0.0625
  • x= 2000

SP= 2000+125= 2125

------------

Cost price= 2000

Marked price= 2500

Selling price= 2125

5 0
4 years ago
Molly has 3 dresses, 2 hats, and 5 pairs of shoes she will chose an outfit with one dress 1 hat and 1 pair of shoes how many dif
Tema [17]

Answer:

6 different possible outfits

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • This system has one solution.
    15·2 answers
  • A gate is 3 feet tall and casts a shadow 5 feet long .At the same time a nearby building casts a shadow 45 feet long.
    13·1 answer
  • if I bought a laundry basket at $7.50 and it was marked down 20% what would that be and the sales tax is 1% what is the total co
    15·1 answer
  • Classify the following triangle. Check all that apply.
    5·2 answers
  • PLEASSSSSSE HELP ME!
    9·2 answers
  • Solve for X showing every step. please help me​
    10·2 answers
  • 5
    13·1 answer
  • In 2007, Linda purchased a house for $120,000. In 2017, the house was worth $245,000. Find the average annual rate of change in
    6·1 answer
  • A package of 5 pairs of insulated socks costs ​$26.45. What is the unit price of the pairs of socks​?
    11·1 answer
  • Question 6 of 10
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!