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
Tems11 [23]
2 years ago
13

The ratio of boys to girls in a class is 5:3. There are 32 students in the class. How many students are boys?

Mathematics
2 answers:
allsm [11]2 years ago
6 0

Add the ratios together: 5 + 3 = 8

Divide total students by 8:

32 / 8 = 4

Multiply each ratio by 4 to find the number of each:

Boys = 4 x 5 = 20

Girls = 3 x 4 = 12

There are 20 boys.

miv72 [106K]2 years ago
5 0

Answer:

5x+3x=8x

8x = 32

x=32/8 = 4

boys are 4 x 5 = 20

girls are 4 x 3 = 12

Step-by-step explanation:

You might be interested in
You mow the lawn to earn your allowance. Each time you mow the lawn you earn 12$
BARSIC [14]

Answer:

12×m=d................

5 0
3 years ago
2 Which table represents a function? X y X у 2 -3 -3 0 3 0 -2 1 4 -3 -3 2 2 1 2 3 (1) (3) х X у 1 2 AWNIK -4 1 2 1 NO 4. 1 5 4 6
disa [49]
The answer to Which table represent a function is 1
7 0
2 years ago
A shop sells packs of black pens, packs of red pens and packs of green pens.
olchik [2.2K]

Answer:

85 pens  

Step-by-step explanation:

The computation of the number of green pens sold is shown below;

As the number of black pens, red pens, and green pans is 3:5:6

And, the ratio of sold of black pens, red pens, and green pans is 7:3:4

So, the ratio of pens in a number of pens is

= 3 × 7 : 5 × 3 : 4 × 6

= 21: 15 : 24

= 7: 5 : 8

And, the total of 212 pens are sold

So, the number of green pens sold is

= 8 × 212 ÷ (7 + 5 + 8)

= 85 pens  

4 0
3 years ago
A section of concrete pipe 30m long has an inside diameter of 1.2m and an outside diameter of 1.8m. what is the volume of concre
Fudgin [204]

length of pipe= 30m

Inside dia. = 1.2m

Outside dia. = 1.8m


Volume of concrete= (outside dia. - inside dia.)h

V= (pi)
v= [(3.14*0.9*0.9)-(3.14*0.6*0.6)]30

v= (3.3534-1.1304)30
v=(2.233)30 = 66.690m cube

since it's volume the answer 66.690 is in cubic meters.

5 0
3 years ago
What is the equation of the line h Th ya has a y intercept of (0,-3) and passes through the point (-9,-9)
Nikolay [14]

Answer:

The line equation is given as: 3 y = 2 x - 9

Step-by-step explanation:

Here, Y intercept   is at point ( 0.-3)

So, at x = 0, y = -3

or, C  = -3

Also, the point on the equation line is (x,y)  = (-9,-9)

Now, by <u>SLOPE INTERCEPT FORM</u> of a line equation,we get:

y = m x + C   :  m  = slope of line  ......... (1)

So, substituting the values of C and (x,y) , we get:

-9  = m (-9)  + (-3)  

or, -9 + 3  = - 9 m

or, m =  -6/-9  = 2/3

or, m = 2/3

Now, substitute the value of m back in to the line equation (1)

y = m x + C   \implies  y = (\frac{2}{3}) x - 3\\\implies 3y = 2x - 9

Hence, the line equation is given as: 3 y = 2 x - 9.

5 0
3 years ago
Other questions:
  • A pasture is twice as long as it is wide. its area is 88,200 ft2. how wide is the pasture?
    15·1 answer
  • The smaller of two numbers is one-half the larger, and their sum is 27. Find the numbers. I need an answer in 10 minutes
    14·1 answer
  • 7p - 3r + 6 -5s TERMS
    14·1 answer
  • Need answers for all of them 25 points
    6·1 answer
  • A circle with radius of 2cm sits inside a circle with radius of 4cm What is the area of the shaded region
    12·1 answer
  • QUESTION 16The cost of DVD players has dropped by $20 each year. If a DVD player cost $189 four years ago, how much does it cost
    5·2 answers
  • There is a spinner with 14 equal areas, numbered 1 through 14. If the spinner is spun one time, what is the probability that the
    7·2 answers
  • A triangle has sides with lengths 17, 12, and 9. Is the triangle right, acute, or obtuse?
    13·1 answer
  • Let us denote by P the set of all people, by S the set of people who are single, by C the set of people who have children, by W
    9·1 answer
  • 35.1 divided by 2.7 explanation to
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!