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
andre [41]
3 years ago
11

The ratio of boys to girls at the movie is 4:7. If there are 21 girls l, how many boys are at the movie?

Mathematics
1 answer:
Gelneren [198K]3 years ago
7 0
There are 12 boys 21/7=3 so 4(3)= 12 
You are welcome
You might be interested in
Write the equation 12 = -3x + 6 in the form ax + b = c, with c = 12. What are the values of a and b?
umka21 [38]

sorry I don't know Ab = cd and bc = ad

Using SAS postulate triangles formed by ABC = abd

Opposite sides are equal and each angle is 90 degrees so by definition it is a rectangle.Ab = cd and bc = ad

Using SAS postulate triangles formed by ABC = abd

Opposite sides are equal and each angle is 90 degrees so by definition it is a rectangle.

8 0
3 years ago
Read 2 more answers
The authors of a paper presented detailed case studies to medical students and to faculty at medical schools. each participant w
salantis [7]

Answer:

The question is incomplete. The complete question and its solution is attached below:

4 0
4 years ago
Rex has a collection of 160 toy dinosaurs to put into 4 boxes. He puts 5 handfuls of toy dinosaurs in each box. There are no toy
SpyIntel [72]

Answer: 8 dinos

Step-by-step explanation:

there are 4 boxes and 5 handfuls in each. divide 160 by 4 and divide that, 40, by 5 to get 8

8 0
3 years ago
The ratio of boys to girl in a school is 5:7 if there are 600 students, how many girls are there
larisa86 [58]

Answer:

350 girls

Step-by-step explanation:

So,

The secret to solving problems with ratios is to find the value of one unit.

5:7 = 12 units total

To find one unit, divide the total number of students by the total number of units.

600/12 = a

Simplify

50/1 = a

50 = a

The value of each unit is 50.

Now, multiply the units by the numbers in the ratio.

50(5) = b

250 = boys

50(7) = x

350 = x

There are 350 girls.

3 0
3 years ago
3. Michel invests $850 at 7%/a simple interest. How long will he
Kipish [7]

~~~~~~ \textit{Simple Interest Earned} \\\\ I = Prt\qquad \begin{cases} I=\textit{interest earned}\dotfill&\$200\\ P=\textit{original amount deposited}\dotfill & \$850\\ r=rate\to 7\%\to \frac{7}{100}\dotfill &0.07\\ t=years \end{cases} \\\\\\ 200=850(0.07)t\implies \cfrac{200}{850(0.07)}=t\implies \stackrel{\textit{about 3 years, 4 months and 10 days}}{3.36\approx t}

5 0
2 years ago
Other questions:
  • About how far is the origin from the point (-8,10) on a coordinate grid?
    7·1 answer
  • A data analytics firm hired by a Republican candidate running for political office wants to test whether its practices were succ
    12·1 answer
  • Professor N. Timmy Date has 31 students in his Calculus class and 17 students in his Discrete Mathematics class.
    9·1 answer
  • Why you should record a 1 in the tens column when you regroup in an addition problem
    8·2 answers
  • A linear equation that passes through (-6,-5) and parallel to 2x-3y=12
    7·1 answer
  • Y−3=2(x+1) missing value
    6·1 answer
  • Using the graph below, select all statements that are true.
    14·1 answer
  • What are factors of -12 that have a sum of +1?​
    10·1 answer
  • What is 6^4written in expanded form?<br> 4+4+4+4+4+4<br> 4.4.4.4.4.4<br> 6+6+6+6<br> 6.6.6.6
    5·2 answers
  • Use the slope formula to find the slope of the line through the points (−1,−2) and (9,−10)
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!