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
Stolb23 [73]
3 years ago
5

A total of 345 tickets were sold for the school play. they were either adult tickets or student tickets. the number of student t

ickets sold was two times the number of adult tickets sold. how many adult tickets were sold? 4 \[p
Mathematics
1 answer:
Slav-nsk [51]3 years ago
3 0
Write the system of equation based on the problem
"A total of 345 tickets that consists of adult tickets and students ticket were sold" could be written as:
∴ a + s = 345 <em>(first equation)</em>
"<span>the number of student tickets sold was two times the number of adult tickets sold" could be written as:
</span>∴ s = 2a  <em>(second equation)</em>
<span>
Solve the system of equation
Substitute 2a as s in the first equation
a + s = 345
a + (2a) = 345
3a = 345
  a = 345/3
  a = 115

There are 115 adult tickets sold.</span>
You might be interested in
. A certain coin is a circle with diameter 18 mm. What is the exact area of either face of the coin in terms of p?
vitfil [10]

Answer:

r =\frac{D}{2}=\frac{18mm}{2}= 9mm

The area is given by:

A= \pi r^2

And replacing we got:

A=\pi (9mm)^2 =81\pi mm^2

So then we can conclude that the area of the coin is 81\pi mm^2

Step-by-step explanation:

For this case we know that we have a coin with a diamter of D =18mm, and by definition the radius is given by:

r =\frac{D}{2}=\frac{18mm}{2}= 9mm

The area is given by:

A= \pi r^2

And replacing we got:

A=\pi (9mm)^2 =81\pi mm^2

So then we can conclude that the area of the coin is 81\pi mm^2

4 0
3 years ago
1. Scale 1 cm = 250 km
patriot [66]

Answer:

a= 500km b= 1,250 c= 750

Step-by-step explanation:

a= 250x2=500km

b= 250x5=1,250km

c= 250x3=750km

3 0
3 years ago
A group of 20 friends were going on a picnic 7 friends were playing basketball and 5 friends were having snacks if 2 friends wer
dlinn [17]
The problem statement tells you "7 friends were playing basketball".

_____
It appears 5 friends were only playing basketball, 2 friends were playing basketball and having snacks, and 3 friends were only having snacks. Apparently, 10 friends were doing neither of those activities.
4 0
3 years ago
The probability that a 38-year-old white male will live another year is .99813. What premium would an insurance company charge t
alukav5142 [94]

Answer:

The insurance company should charge $1,873.5.

Step-by-step explanation:

Expected earnings:

1 - 0.99813 = 0.00187 probability of the company losing $1 million(if the client dies).

0.99813 probability of the company earning x(price of the insurance).

What premium would an insurance company charge to break even on a one-year $1 million term life insurance policy?

Break even means that the earnings are 0, so:

0.99813x - 0.00187(1000000) = 0

0.99813x = 0.00187(1000000)

x = \frac{0.00187(1000000)}{0.99813}

x = 1873.5

The insurance company should charge $1,873.5.

4 0
3 years ago
What is the greatest perfect square that is a factor of 350
lara31 [8.8K]

Answer: 25

Step-by-step explanation: 350=35*10=7*5*5*2=14*5^2

6 0
3 years ago
Other questions:
  • Convert 22 meters to millimeters​
    7·1 answer
  • How do you solve 3(6+5y)=2(-5+4y)
    10·2 answers
  • Two mechanics worked on a car. The first mechanic worked for 15
    15·1 answer
  • The volume of a cylinder is cubic units. A cone shares the same base. The height of the cone is twice the height of the cylinder
    6·2 answers
  • the tempature of a freezer started at "18c."After a few hours of cooling ,the freezer had a tempature if -12c.what is the differ
    15·1 answer
  • If Salvador checks his pulse for 8 minutes, what is his rate if he counts 904 beats?
    7·2 answers
  • 26. State the quadrant in which the point (-3,2) lies.
    7·2 answers
  • Identify the common difference of the sequence: –8, –1, 6, 13
    13·2 answers
  • Earl took a survey of his customers at his bookstore to find out how many children books they purchased. The results of the surv
    7·1 answer
  • Valerie is filling her new fish tank with water. The tank measures 36 inches by 12 inches by 20 inches. She has a bucket that sh
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!