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
dmitriy555 [2]
3 years ago
11

How do I find 45% of 320 by multiplying?

Mathematics
2 answers:
Juliette [100K]3 years ago
7 0
1. We assume, that the number 320 is 100% - because it's the output value of the task. 
<span>2. We assume, that x is the value we are looking for. </span>
<span>3. If 320 is 100%, so we can write it down as 320=100%. </span>
<span>4. We know, that x is 45% of the output value, so we can write it down as x=45%. </span>
5. Now we have two simple equations:
1) 320=100%
2) x=45%
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
320/x=100%/45%
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 45% of 320

320/x=100/45
<span>(320/x)*x=(100/45)*x       - </span>we multiply both sides of the equation by x
<span>320=2.22222222222*x       - </span>we divide both sides of the equation by (2.22222222222) to get x
<span>320/2.22222222222=x </span>
<span>144=x </span>
x=144

<span>now we have: </span>
<span>45% of 320=144</span>
statuscvo [17]3 years ago
4 0
Well the percent sign, %, literally means out of 100. So, you are multiplying like this:
.45 • 320
=
144
You might be interested in
Help<br>I will mark as brainliest​
Afina-wow [57]

Answer:

^3 divided by 512 goes to ^3 divided by 8x8x8

8^2 goes to ^2 divided by 8x8x8

Step-by-step explanation:

7 0
4 years ago
Read 2 more answers
You drive your car 720 miles in 20 hours. How far would you drive in 5 hours?
White raven [17]

Answer:

244 miles per hour

Step-by-step explanation:

All u have to do is divide 5by 720 and u have ur answer

7 0
3 years ago
1. A 35-pound mixture of metal includes 20 pounds of aluminum, 10 pounds of nickel,
Igoryamba

Answer:

7:1

Step-by-step explanation:

35mixture(:) means to5 copper

35: 5

35÷5:5÷5 = 7:1

7 0
3 years ago
What is the means-to-MAD ratio of the two data sets, expressed as a decimal?
frez [133]
<span>You have to calculate two separate measures, one for each set.The mean-to-MAD ratio is the mean divided by the MAD, i. e. mean / MAD. For the set 1, mean = 10.7 and MAD = 2.4, then mean / MAD = 10.7 / 2.4 = 4.4583. For the set 2, mean = 13.7 and MAD is 2.5, so mean/ MAD = 13.7 / 2.5 = 5.480.</span>
3 0
4 years ago
Can someone answer Please??
Zarrin [17]
Y=5^x when x is 2.

y=5^2

y=25

Hope this helps!
3 0
4 years ago
Other questions:
  • Alexa and Rose read books that have the same number of pages. Alexa's book is divided into 8 equal chapters. Rose's book is divi
    15·2 answers
  • Solve 6x+9-16x=-21 Could you show your work please? That would be greatly appreciated.
    12·2 answers
  • What is the Lcd of fra tions 1_3 and 11 _15​
    14·2 answers
  • Which of the following is not a way to represent the solution of the inequality 7 - 9x - (x + 12) less than or greater to 25?
    6·1 answer
  • Wat is the mean of the set of data??
    10·2 answers
  • Find the present worth ofRS.2040 due 4 years hence reckoning interest at 5%p.a.<br>​
    15·2 answers
  • Algebraic expression a number reduce by 7
    6·1 answer
  • Help :( I'm struggling ​
    14·1 answer
  • Please help what does B and C equal
    8·1 answer
  • Hello can you please help me
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!