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
Virty [35]
3 years ago
5

When a barrel is 30% empty it

Mathematics
1 answer:
blondinia [14]3 years ago
5 0

Answer:

it is 70% full

Step-by-step explanation:

When it is 30 % empty it means it is 70% full

0.7x=0.3x+30

0.7x-0.3x=30

You might be interested in
Multiply. <br> (−23) (16) <br> Enter your answer as a fraction, in simplified form, in the box.
kkurt [141]

Step-by-step explanation:

(-2/3 )x (1/6)

Cross Multiply:

\frac{2}{3}  . \frac{1}{6} \\  .... so the 2 and 6 would become 1 and 3

\frac{1}{3} .\frac{1}{3}   ..... Like that

\frac{1}{9} ..... (3x3=9)

-1/9 .... Answer

Hope this helps!!

8 0
3 years ago
Read 2 more answers
Simplify 3/4(1/2×-12)+4/5​
Wittaler [7]

Answer: \frac{3}{8}x-\frac{41}{5} or  \frac{3}{8}x-8\ \frac{1}{5}

Step-by-step explanation:

Given the following expression:

\frac{3}{4}(\frac{1}{2}x-12)+\frac{4}{5}

You can follow these steps in order to simplify it:

1.  You need to apply Distributive property:

=\frac{3}{8}x-9+\frac{4}{5}

2. And now you must add the like terms. Then:

=\frac{3}{8}x-\frac{41}{5}

Therefore you get the following answer:

\frac{3}{8}x-\frac{41}{5} or  \frac{3}{8}x-8\ \frac{1}{5}

7 0
3 years ago
Please help me i will mark brainlest
valkas [14]
The answer is to the problem is 120 °
4 0
3 years ago
A force of $20$ newtons will stretch a spring $5$ centimeters. What is the total number of centimeters that a force of $60$ newt
Aleksandr-060686 [28]

Answer:

Step-by-step explanation:

Hooke's Law applies here, which is a linear relationship. It would be easier to solve this using proportions with N of force on the top and the amount of stretch in cm on the bottom. Set up with our unknown, the number of cm:

\frac{N}{cm}:\frac{20}{5}=\frac{60}{x} and cross multiply:

20x = 300 so

x = 15 cm

6 0
3 years ago
For each of these triples, find if they could be the lengths of the sides of a right triangle.
frutty [35]
A is the correct answer
7 0
3 years ago
Other questions:
  • Can someone help me please? Am I right or no?
    10·1 answer
  • If a is a negative number, then a(1/a) is equal to -1. If a is a negative number and b is a negative number, then product ab is
    10·1 answer
  • Nik, a social worker for a county, helps county residents who are struggling with different issues. Nik logs the following hours
    6·1 answer
  • The top of a mountain is 2,450 feet above sea level a shipwreck was discover 310 feet below sea level what is the distance betwe
    5·1 answer
  • jacobs job pays him $12.50 per hour which equation can be used to find jacobs salary ,y,if he works for x hours ?
    8·1 answer
  • An estate of $686,000 is left to three siblings. The eldest receives 2 times as much as the youngest. The middle sibling receive
    13·2 answers
  • Which functions are even? check all the boxes that apply.<br> pls hurry!!
    9·2 answers
  • From data gathered in the period 2008−2012, the yearly value of U.S. exports can be modeled by the function E(x) = −228x3 + 2,25
    13·1 answer
  • How do you know if an event of A and B is independent in Stats?
    11·1 answer
  • 5 The smallest angle of a triangle, in degrees, is p.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!