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
Ivahew [28]
3 years ago
9

If 30 is increased by 20%, what is the new amount?

Mathematics
1 answer:
Burka [1]3 years ago
8 0

Answer:

The new amount is 36

Step-by-step explanation:

we know that

100%+20%=120%

Let

x-----> the new amount

The number 30 represent the 100%

so

by proportion

30/100%=x/120%

x=120*30/100=36

You might be interested in
If equal amounts are added to the numerator and the denominator of the current ratio, the ratio will always:
Marta_Voda [28]

Answer:

Increase?

Step-by-step explanation:

Because think about it let's use 1/2 as an example.

1/2 equals .5 now lets add 2 to both the numerator and denominator

3/4 is the result and it also equals .75 which is larger than .5 so that's why the answer is increase.

and u can keep on going on with the method

4/5=.8

7 0
3 years ago
Solve x^2 +14x=15 by completing the square
ivanzaharov [21]

Answer:

x = -15 and x = 1

Step-by-step explanation:

Since we have to use the complete the square method, we first need to <u>rewrite the equation</u> in the form x^{2}+2ax+a^{2}=(x+a)^{2}.

This results in x^{2} + 14x + 7^{2} = 15 + 7^{2}.

Next, we <u>simplify the equation</u> to get x^{2} +14x+7^{2} = 64.

<u>Factoring </u>the left side gives us (x+7)^{2} = 64.

Finally we <u>solve the equations</u>: x+7=\sqrt{64} and x+7=-\sqrt{64}.

This gives us  x=1, and x=-15

6 0
3 years ago
Read 2 more answers
-9(x+2)=54 apply the distributive property and simplify ​
Tomtit [17]

Answer:

x = -8

Step-by-step explanation:

-9 (x+2) = 54

-9x - 18 = 54

-9x = 72

x = -8

Hope this helps :)

Let me know if there are any mistakes!!

8 0
3 years ago
What are the solutions to the equation x2 + 4x – 12 = 0?
Alik [6]

Answer:

Step-by-step explanation:

X=2,-6

8 0
3 years ago
Please help!!
timurjin [86]

Answer:

x=5, y=(5)/2

Step-by-step explanation:

Using the 30-60-90 triangle rule, we know that the sides follow 1-(/2)-2. The ratio between the side and the rule is 5/2, meaning that we know that y=(5)/2 and x=5.

Is THIS good enough for you?

8 0
3 years ago
Other questions:
  • If $10000 is invested at a rate of 2.3% compounded continuously, find the balance in the account after 15 years.
    8·1 answer
  • Write the phrase as an algebraic expression and simplify if possible
    13·1 answer
  • What is a ratio equivalent to 8/10 with lower terms
    11·1 answer
  • A motorist traveled 311 miles on 12 gallons of gas. To the nearest tenth, how many miles can the motorist travel on one gallon o
    14·2 answers
  • Two part-time employees share one full-time job. A girl works Mondays. Thursday, Wednesdays, and Fridays, and a boy works Tuesda
    12·1 answer
  • Which expression is equivalent to 13 - (-21)?
    13·1 answer
  • Assume 1 dozen oranges has a mass of 1.5 kg and that there are 14 orange slices in each orange. How many slices are in 6 kg of o
    6·1 answer
  • Please Help Will Mark Brainly
    13·1 answer
  • Which one is it? iv'e been struggling.
    10·2 answers
  • Please help it’s due in 30 mins and I still have a lot more questions :(
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!