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
Dmitry [639]
2 years ago
9

A school has 60% girls and 40% boys. If 30% of the girls wear glasses and 20% of the boys wear glasses, what percent of all stud

ents wear glasses?
A 36%
B 25%
C 42%
D 26%​
Mathematics
1 answer:
Zina [86]2 years ago
7 0

Answer:

25%

Step-by-step explanation:

there is total boys and total girls so 200%

30%girls take

20%boys it is 50% of 200 % so 25% of all

You might be interested in
What is 62 in expended form
Mrrafil [7]
60 plus 2 is the answer  

7 0
3 years ago
Read 2 more answers
Question 8/Multiple Choice Worth 1 points)
Hunter-Best [27]

Answer:

k = 3

Step-by-step explanation:

Given

f(x) = 0.5x

g(x) = 0.5x - k

Required

Find k

<em>The question illustrates changing of positions of lines along the x and/or y axis;</em>

<em>But in this case; if graph f(x) is shifted down, then it represents a negative shift of points in the y axis.</em>

Given that f(x) = 0.5x

and f(x) is shifted down by 3 units to give g(x); then:

f(x) - 3 = g(x)

Substitute 0.5x for f(x)

0.5x - 3 = g(x)

Recall that g(x) = 0.5x - k ---------- (given)

0.5x - 3 = 0.5x - k

Subtract 0.5x from both sides

-0.5x + 0.5x - 3 = -0.5x + 0.5x - k

-3 = -k

Multiply both sides by -1

-3 * -1 = -k * -1

3 = k

k = 3

<em>Hence, the value of k is 3</em>

8 0
3 years ago
The midpoint of AB is M(4, -1). If the coordinates of A are (2,5), what are the
ozzi

Answer:

(6,-7)

Step-by-step explanation:

take b as x2,y2

then apply mid point formula

x=(x1+x2)/2

y=(y1+y2)/2

8 0
3 years ago
Read 2 more answers
Each length unit on the speedway diagram represents one-tenth of a mile. What is the area of the sector associated with turn A i
Alecsey [184]
We know that 
area of a circle=pi*r²
turn A
r=3 units------> 3*(1/10)----> 0.3 miles
area of a circle=3.142*0.3²-----> 0.28278 miles²

by proportion
0.28278/360°=A/90°------> A=90*0.28278/360------> A=0.0707 miles²

the answer is
0.0707 miles²

5 0
3 years ago
A​ whale-watching tour boat cannot operate if the total passenger weight is more than 3 comma 150 comma 000 grams. What is the m
Andru [333]

Answer:

45

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • Which graph best represents the solution to the following system?
    10·1 answer
  • Can someone please help ASAP?!!!
    9·1 answer
  • PLEASE HELP PICTURE IS SHOWN
    8·1 answer
  • The summit of Half Dome is the size of 17 football fields. A football field is 360 feet long and 160 feet wide. What is the area
    14·2 answers
  • Which is the intersection of the sets {2,3,5,7} and {2,5,11,13}?
    10·1 answer
  • The scale for a map is 20 miles = 1/2 inch. The distance between two towns on the map is 3 3/4 inches. What is the actual distan
    15·1 answer
  • A log splitter can split 6/5 cords of wood in 4/5 of an hour. Complete the unit rate by setting up a complex fraction and simpli
    12·1 answer
  • A cylinder has a volume of 308 cubic inches and a height of 8 inches.What is the radius of the cylinder?Usr 3.14 for pie round t
    10·1 answer
  • Dominic jumped from a height of 14.3 feet above the surface of a pool. He traveled 18.7 feet straight down into the water. From
    10·1 answer
  • Simplify the exponential expression.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!