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]
2 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]2 years ago
8 0

Answer:

105

Step-by-step explanation:

Reika [66]2 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
There are two similar right triangles. One has side lengths of 6, 8, and 10. The other has side lengths of 24, and 18. What is t
maxonik [38]

Answer:

30

Step-by-step explanation:

24/8 = 3

18/6= 3

10x3 = 30

3 0
3 years ago
In an assembly line where the cycle time is 3 minutes and the sum of the task times is 22 minutes, what is the daily production
pogonyaev

Answer:

= 160 units

Step-by-step explanation:

Relevant data provided as the situation is below:-

Total available time = 480

Cycle time = 3

According to the given situation, the computation of the daily production rate is shown below:-

Daily production rate is

= \frac{ Total\ available\ time}{Cycle\ time}

= \frac{480}{3}

= 160 units

Therefore we have solve the daily production rate to reach the daily production rate.

6 0
3 years ago
Find the value of B - A if the graph of Ax + By = 3 passes through the point (-7,2), and is parallel to the graph of x + 3y = -5
Gnoma [55]

The required simplified value of B - A = -6.

<h3>What is simplification?</h3>

The process in mathematics to operate and interpret the function to make the function simple or more understandable is called simplifying and the process is called simplification.

Since, line Ax + By = 3 and x + 3y = -5 are parallel than slope of both the line will be same,
m = -1/3 = -A/B
From above
A = B/3  - - - - -(1)


Now line Ax + By = 3 passed through the point (-7, 2). So,
-7A + 2B = 3
from equation 1
-7B/3 + 2B = 3
-B/3 = 3
B = -9
Now put B in equation 1
A = -9 / 3
A = -3

Here,
B - A = -9 + 3 = -6

Thus, the required simplified value of B - A = -6.

Learn more about simplification here: brainly.com/question/12501526

#SPJ1



7 0
1 year ago
Please help problem is in the image.
nika2105 [10]

Answer:

16.5

Step-by-step explanation:

this is beacuse 16.5 times 2 is 33

5 0
3 years ago
Which of the following doesn't describe a point?​
Veseljchak [2.6K]

Answer:

It has infinite length, but no width and no thickness (It describes a Line )

Hope it helps...

Have a great day :P

8 0
2 years ago
Read 2 more answers
Other questions:
  • How much money would need to be deposited into an account earning 5.75% interest compounded annually in order for the accumulate
    7·2 answers
  • Simplify. –24 – 8 ÷ (–4) <br> A. –22 <br> B. –8 <br> C. –26 <br> D. 8
    14·2 answers
  • What values of x and y satisfy the system of equations {x = −2y + 1 | 13x + 8y = 11?}
    5·1 answer
  • Why is 21 sqrt root an irrational number?
    10·1 answer
  • To the nearest hundredth, what is the value of x?
    15·2 answers
  • Lolz please help me I would gladly appreciate it
    9·2 answers
  • Can someone help please
    9·1 answer
  • A passenger train leaves the train depot 2 hours after a freight train left the same depot. The freight train is traveling 20mph
    5·1 answer
  • You spin the spinner once.
    9·1 answer
  • Please help!!!!! geometry
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!