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
guapka [62]
3 years ago
8

How would I find 10% of 30 by using a proportion?

Mathematics
2 answers:
mamaluj [8]3 years ago
6 0
Set up an proportion first. It looks like this:

Part Percent
————— = —————
Whole 100%
10 is your percent, 30 is your whole, 100 is always 100, and you don’t know the part so it is x (unknown).
It now looks like this:
X 10
————— = —————
30% 100%

Step by step explanation:

1) multiply across
30 • 10 = 300

2) divide what’s left over
300 / 100 = 3
So 10% of 30 is 3.
Zepler [3.9K]3 years ago
3 0

10% × 30 =

(10 ÷ 100) × 30 =

(10 × 30) ÷ 100 =

300 ÷ 100 =

3;

You might be interested in
Mrs. James displayed the factor tree at the right complete the factor tree to find the number that has prime factorization of 2
Taya2010 [7]
Download the guath math app it will help you with all your math work
4 0
3 years ago
Read 2 more answers
Petrina had a piece of red ribbon that measured 2.4 m long. she also had a piece of blue ribbon which was 7 8 m long. what was t
katen-ka-za [31]

The total length of red and blue ribbons is 10.2 m.

Given that, the length of the red ribbon =2.4 m and the length of the blue ribbon =7.8 m.

<h3>How to add two decimals?</h3>

Adding decimals is similar to the usual addition of whole numbers. We know that a decimal number is a number with a whole number part and a fractional part which is separated by a decimal point.

Now, the length of the red ribbon + the length of the blue ribbon=2.4+7.8

=10.2 m

Therefore, the total length of red and blue ribbons is 10.2 m.

To learn more about the addition of decimals visit:

brainly.com/question/17612968.

#SPJ4

7 0
2 years ago
Find the length of side x in simplest radical form with a rational denominator.<br> X
Aleks04 [339]
Nxjxixjjxxjxjxjxjxj snznznxjx
4 0
3 years ago
HELP What is the area of this figure?
Mademuasel [1]
The correct answer is:  [B]:  "40 yd² " .
_____________________________________________________
First, find the area of the triangle:

The formula of the area of a triangle, "A":

A = (1/2) * b * h ; 

in which:  " A = area (in units 'squared') ;  in our case, " yd² " ; 

                 " b = base length" = 6 yd.  

                 " h = perpendicular height" = "(4 yd + 4 yd)" = 8 yd.
___________________________________________________
→  A = (1/2) * b * h = (1/2) * (6 yd) * (8 yd) = (1/2) * (6) * (8) * (yd²) ; 
                                                                 
                                                                   =  " 24 yd² " .
___________________________________________________
Now, find the area, "A", of the square:

The formula for the area, "A" of a square:

   A = s² ;

in which:  "A = area (in "units squared") ; in our case, " yd² " ;
                 
                 "s = side length (since a 'square' has all FOUR (4) equal side lengths);

 A = s²  = (4 yd)² = 4² * yd² =  "16 yd² "
_________________________________________________
Now, we add the areas of BOTH the triangle AND the square:
_________________________________________________
        →  " 24 yd²  +  16 yd² " ; 

to get:  " 40 yd² " ;  which is:  Answer choice:  [B]:  " 40 yd² " .
_________________________________________________
4 0
3 years ago
I will report files and unhelpful answers!
anzhelika [568]

Answer:

m > = 1204 minutes

Step-by-step explanation:

28 + 0.05m>=88.20

Subtract 28 from both sides. Then divide both sides by 0.05 to get:  

m >=1204 minutes

4 0
3 years ago
Read 2 more answers
Other questions:
  • A googol is a large number that is the digit one followed by one hundred zeros. If you multiply a googol by 100, how many zeros
    11·1 answer
  • David gave 1/5 of his oranges to his brother. his brother got 15 oranges. he gave his friend donny 1/3 of the remainder.
    8·1 answer
  • A state gets its money from a state lottery, a property tax, a sales tax of 5%, and an excise tax. This year it projects that it
    13·2 answers
  • A windshield wiper blade turns through an angle of 135°. The bottom of the blade traces an arc with a 8-inch radius. The top of
    15·1 answer
  • Use the quadratic formula to find all degree solutions and θ if 0° ≤ θ &lt; 360°. Use a calculator to approximate all answers to
    9·1 answer
  • You originally draw a design for an art contest on a 2 in. x 5 in. card. The second phase of the contest requires the drawing to
    7·2 answers
  • The length of a rectangle is 4 cm more than the width and the perimeter is at least 48 cm. What are the smallest possible dimens
    10·1 answer
  • Solve for x in the equation x^2 + 4x - 4 = 8
    8·2 answers
  • The question is:<br> Which calculation and answer show how to convert 13/16 into a decimal
    10·1 answer
  • What is 6/15+3/10+3/5
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!