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
Fed [463]
3 years ago
8

A total of 330 children and adults attended a school play. There were 21 times as many children in attendance as there were adul

ts.
This situation is modeled by the given system of equations, where a represents the number of adults and c represents the number of children.

c = 21a

a + c = 330

How many children attended the play?
Mathematics
2 answers:
Pani-rosa [81]3 years ago
6 0

Answer:

15

Step-by-step explanation:

vovangra [49]3 years ago
5 0

Answer:

315 children

Step-by-step explanation:

a + 21a = 330 {substituted 21a, in for c, into second equation}

22a = 330 {combined like terms}

a = 15 {divided each side by 22}

15 adults attended

c = 21a {first original equation}

c = 21(15) {substituted 15,

You might be interested in
Will mark as brainliest plz helpp​
almond37 [142]

x - √3y - 4 = 0 → <u>Choice</u><u> </u><u>A</u>

Step-by-step explanation:

x - 4 = √3y

x - 4 <u>- √3y</u> = √3y <u>- √3y</u>

x - 4 - √3y = 0

x - √3y - 4 = 0

4 0
3 years ago
a box of crackers has a volume of 48 cubic inches. what is the volume of a similar box that is smaller by a scale factor of 2/3
earnstyle [38]
For this case what you need to know is that the original volume of the cookie box is:
 V = (w) * (l) * (h)
 Where,
 w: width
 l: long
 h: height.
 We have then:
 V = (w) * (l) * (h) = 48 in ^ 3
 The volume of a similar box is:
 V = (w * (2/3)) * (l * (2/3)) * (h * (2/3))
 We rewrite:
 V = ((w) * (l) * (h)) * ((2/3) * (2/3) * (2/3))
 V = (w) * (l) * (h) * ((2/3) ^ 3)
 V = 48 * ((2/3) ^ 3)
 V = 14.22222222 in ^ 3
 Answer:
 the volume of a similar box that is smaller by a scale factor of 2/3 is:
 V = 14.22222222 in ^ 3
6 0
3 years ago
-2 (x - 3) + 6 = - (x + 5) <br> Solve for x and SHOW WORK please :)
Alex17521 [72]

Answer:

x=17

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
What’s the answer and how do u get it
SCORPION-xisa [38]

9514 1404 393

Answer:

  (d)  domain: 0 ≤ x ≤ 4; range: -1 ≤ y ≤ 7

Step-by-step explanation:

The graph of the inverse of a function is a reflection of the function's graph across the line y=x. The table values are obtained by swapping the x- and y-labels. This is shown in the attachment.

4 0
3 years ago
Simplify: <img src="https://tex.z-dn.net/?f=4%5Csqrt%7B12%7D%20-%20%5Csqrt%7B3%7D%20%2B%204%20%5Csqrt%7B6%7D%20%2B%203%20%5Csqrt
Dahasolnce [82]
4 divided by 12 -3+4 divided by 6+3 divided by 4
6 0
2 years ago
Other questions:
  • What are the solutions of the quadratic equation below?
    12·2 answers
  • Find the missing values in the ratio table then right the equivalent ratio
    7·2 answers
  • If x=-3 is (x-5)(x-7)&lt;0?​
    13·1 answer
  • Algebra 2<br><br> Solve: f(x)=x^2-9
    5·1 answer
  • Which statements about the number properties are true? Choose all answers that are correct. A. The associative property applies
    5·1 answer
  • Solve the equation by using the basic properties of logarithms. log(2x)=3
    10·2 answers
  • Please help me pick the right answer
    6·2 answers
  • Find the interquartile range for each data set.Round your answers to the nearest tenth. 19,13,15,26,11,15,17,5,2,0,2,2,4,3,4,6
    8·1 answer
  • What is the difference in finding the exact vs approximate volume?
    5·1 answer
  • Once a commercial plane reaches the desired altitude, the pilot often travels at cruising speed. On average, the cruising speed
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!