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
marissa [1.9K]
3 years ago
9

A group of 70 people attended a ball game. There were four times as many children as adults in the group. Set up a system of equ

ations that represents the number of adults and children who attended the game and solve the system to find the number of adults and the number of children who were in the group.
Mathematics
1 answer:
anzhelika [568]3 years ago
3 0

Answer:

4b+b=70

5b=70

b=14

Step-by-step explanation:

4(14)+(14)=70

You might be interested in
The equation y=2x represents a set of data. Which statement is NOT true?
Tresset [83]

Answer:

The initial value is 2

Step-by-step explanation:

6 0
3 years ago
Solution of the equation<br> 3x/5+1=4x/15+7
Anika [276]

Answer:

x = 18

Step-by-step explanation:

Given

\frac{3x}{5} + 1 = \frac{4x}{15} + 7 ( subtract 1 from both sides )

\frac{3x}{5} = \frac{4x}{15} + 6

Multiply through by 15 to clear the fractions

9x = 4x + 90 ( subtract 4x from both sides )

5x = 90 ( divide both sides by 5 )

x = 18

4 0
3 years ago
Find all solutions to the equation.<br><br> cos^2x + 2 cos x + 1 = 0
natali 33 [55]

\bf cos^2(x)+2cos(x)+1=0\implies \stackrel{\textit{let's notice, this is simply }ax^2+bx+c=0}{[cos(x)]^2+2cos(x)+1=0} \\[2em] [cos(x)+1][cos(x)+1]=0 \\\\[-0.35em] ~\dotfill\\\\ cos(x)+1=0\implies cos(x)=-1\implies x=cos^{-1}(-1)\implies \stackrel{\textit{for the range }[0,2\pi ]}{x=\pi } \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill \stackrel{\textit{all solutions}}{x=\pi +2\pi n~~,~~ n \in \mathbb{Z}}~\hfill

6 0
3 years ago
PLS HELP WILL GIVE BRAINLIEST IF PERSON ANSWERS WITHIN 5 MINUTES
Mice21 [21]

Answer:

The answer is 2. Drag that in from the bottom to the right.

Step-by-step explanation:

Th constant of proportionality is how much of y is equal to x. Like a 1 cup of soda and two cups and orange juice to make a favorite drink. The constant of proportionality that would equal to one is two.

3 0
3 years ago
While on vacation in Mexico, Karla’s family exchanged 250 dollars for 5,000 pesos. Karla bought a statue of a surfing monkey for
Serjik [45]

Answer:

$23.26

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • A linear function, f, has an x-intercept at (5,0) and a y-intercept at (0,3). Which best describes the shape of the graph of thi
    11·2 answers
  • Select the correct answer.
    15·1 answer
  • (3r-2)(r-2) solve with algebra tiles
    8·1 answer
  • What is 2^2+2^2????!!???????
    14·2 answers
  • you are building a rectangular wading pool you want the area of the bottom to be 90 ft squared you want the length of the pool t
    15·1 answer
  • A similarity transformation maps polygon ABCD to polygon PQRS. If the length of is 6 and the length of the corresponding side, ,
    10·2 answers
  • Can someone help me?
    15·1 answer
  • Two equivalent expressions for 7x.
    11·2 answers
  • Need help 50 pts plus 30 if you get it right
    11·1 answer
  • 15 divided by 3 plus 2/3 x 7=
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!