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
KengaRu [80]
3 years ago
7

How do you use proportions to solve percent problems​

Mathematics
1 answer:
exis [7]3 years ago
7 0

Answer:

Step-by-step explanation:

EXAMPLE #1:

What number is 75% of 4?   (or   Find 75% of 4.)

The PERCENT always goes over 100.

   (It's a part of the whole 100%.)

4 appears with the word of:

   It's the WHOLE and goes on the bottom.

A proportion showing one fraction  with PART as the numerator and 4 as the denominator equal to another fraction with 75 as the numerator and 100 as the denominator.

We're trying to find the missing PART (on the top).

In a proportion the cross-products are equal:   So 4 times 75 is equal to 100 times the PART.

The missing PART equals 4 times 75 divided by 100.

(Multiply the two opposite corners with numbers; then divide by the other number.)

4 times 75 = 100 times the part

300 = 100 times the part

300/100 = 100/100 times the part

3 =   the part

A proportion showing the denominator,  4, times the diagonally opposite 75; divided by  100.

You might be interested in
The earth travels one full rotation around the sun in approximately 365.25 days. How many minutes does it take for the earth to
kozerog [31]

Step-by-step explanation:

365.25days

1day=1440min

365.25days= 365.25×1440

=525960min.

as i guess.

8 0
3 years ago
What is the answer for 3x=x+8
liraira [26]

Answer:

X = 4 pls mark me brainliest

7 0
3 years ago
Read 2 more answers
In​ basketball, some baskets are worth two points. Others are worth three points. In one​ game, the ratio of​ three-point basket
fgiga [73]

Answer:

36 attempts

Step-by-step explanation:

7 0
3 years ago
According to data from the U.S. Department of Education, the average cost y of tuition and fees at public four-year institutions
lianna [129]

Answer:

D

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
-7r2 + 7r + 2 = 2<br> Find Discriminant
victus00 [196]

Answer:

r = 1 , 0

Step-by-step explanation:

-7r^{2} + 7r + 2 = 2

-7r(r-1)=2-2

-7r(r-1)=0

r-1=0

r=1

5 0
3 years ago
Read 2 more answers
Other questions:
  • 3.2249030993 round to the nearest hundreth
    13·2 answers
  • Choose the correct graph to fit the inequality x^2 - y^2 &lt; 9
    12·1 answer
  • What is the conjugate of -1-5i?
    13·1 answer
  • A printer toner company launches a new product. The number of pages that this new toner can print is normally distributed with a
    15·1 answer
  • A bug dug 60 inches straight down below ground and then continued digging 144 inches parallel to the ground. Finally, he realize
    9·1 answer
  • What is the average of the data (round your answer to one decimal place)
    10·2 answers
  • Which inequality is equivalent to |x-4|&lt;9
    5·2 answers
  • Laptop computers are measured according to the diagonals of their screens. A 16-inch laptop has a screen that is 7 inches tall.
    10·1 answer
  • 3 • 1/5 = x please help I am having a brain fart and I am running out of time!
    14·2 answers
  • how can you fluently add, subtract, mulitply, and divide decimals? how can you multiply and divide fractions?​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!