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
Tema [17]
3 years ago
8

At a local preschool, there is a ratio of 3 boys to every 4 girls. If there are 245 total preschoolers enrolled, then how many a

re boys?
Mathematics
2 answers:
Eva8 [605]3 years ago
8 0

Answer:

105

Step-by-step explanation:

Reika [66]3 years ago
5 0

Set up the equation by writing the number of students in the ratio as a fraction:

3/4= (245-x)/x Cross multiply:

3x= 4(245-x) Multiply on right:

3x= 980-4x Add 4x on both sides:

7x= 980 Divide both sides by 7:

x= 140 this is how many girls there are. And:

245-140= 105= boys

You might be interested in
4. Find the area of the triangle whose breadth is 48 cm and height is 5cm​
ryzh [129]

Answer:120

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Need help with trig question
Solnce55 [7]

Answer:

  0 +256i

Step-by-step explanation:

According to Euler's formula, ...

  (4 cis π/8)^4 = (4^4) cis (4×π/8) = 256 cis π/2 = 0 +256i

_____

"cis" is an abbreviation sometimes used for "cosine + i×sine". It simplifies writing the expression. Engineers sometimes simplify it further, writing 4∠(π/8) for the expression in this problem statement.

5 0
3 years ago
What is the domain of the relation?
amm1812

Domain:

{-4, -2, -1 , 1, 4}


Hope it helps

3 0
3 years ago
Solve the system x+3=22 2x-y=2
steposvetlana [31]

Hello from MrBillDoesMath!

Answer:

x = 19, y = 36

Discussion:

x + 3 = 22     (*)

2x - y = 2      (**)


Subtract 3 from both sides of (*)

x + 3 -3 = 22 = 3 = 19  =>

x = 19


Substitute x= 19 in (**)

2(19) - y = 2 =>

38 - y = 2 =>           (add y to both sides)

38 -y + y = 2 + y =>

38 = 2 + y  =>         (subtract 2 from both sides)

38 -2 = 2 -2 + y =>

36 = y


Regards,  

MrB

P.S.  I'll be on vacation from Friday, Dec 22 to Jan 2, 2019. Have a Great New Year!


3 0
3 years ago
The type of equation given below is in point-slope form <br> y=1/2x-5 true or false
kykrilka [37]

Answer:

false

Step-by-step explanation:

point slope form : y - y1 = m( x - x1 )

the equation y = 1/2x - 5 does not follow this therefore the answer is false

the equation y = -1/2x - 5 is instead put in slope intercept form , y = mx + b

8 0
2 years ago
Other questions:
  • What Is 1.8571 equal to in fractions
    8·2 answers
  • Uldpung Piecewise Furttions: Mastery Test
    5·1 answer
  • What is the name of the line that the function approaches?
    12·1 answer
  • PLEASE HELP!! Image Attached! find the value of y, rounded to the nearest tenth
    15·2 answers
  • 'A certain number divided by four, added to twice that number equals 12', all written in an equation​
    12·1 answer
  • How much must you deposit in an account that pays 7% annual interest compounded yearly to have a balance of $550 after 5 years?
    10·1 answer
  • An angle with a measurement of 177 degrees has a supplementary angle of how<br> many degrees?
    12·2 answers
  • Can someone please help me on the last two . I would appreciate it so much
    14·1 answer
  • What do you need to know to describe the velocity of an object?--Three things total
    14·1 answer
  • Cost of CD $14.50 markup 30%
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!