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
Grace [21]
3 years ago
8

There are 60 players on a high school football team. The ratio of juniors and seniors to freshmen and sophmores on the team is 2

:3. The ratio of juniors to seniors on the team is 1:2. How many juniors are on the team? How many seniors?
plz,plz,plz,plz help!!!!!!!!
Mathematics
2 answers:
nata0808 [166]3 years ago
7 0
You know that the ratio of J&S to F&So is 2:3. You need two numbers that have that same ratio to total 60 players.  When you multiply both numbers by 12, you have a ratio of 2:3 but the number of players is 24 to 36.  Thus, the total players is 60.  When looking at the ratio of Juniors to Seniors, the ratio remains 1:2, but must total 24 players.  Dividing the total players by 3, you can find where 1 part of the players equals 2 parts of the others.  Keeping that same ratio in mind, you are able to calculate that the ratio of Juniors to Seniors is 8:16 but when reduced, still remains a 1:2 ratio.
vova2212 [387]3 years ago
3 0

Answer with Step-by-step explanation:

There are 60 players on a high school football team.

The ratio of juniors and seniors to freshmen and sophomores on the team is 2:3.

i.e. number of juniors and seniors are:

\dfrac{2}{2+3}\times 60

=24

The ratio of juniors to seniors on the team is 1:2.

i.e. number of juniors are:

\dfrac{1}{1+2}\times 24

=8

and number of seniors are:

\dfrac{2}{1+2}\times 24

=16

Hence, Number of juniors=8

and number of seniors=16

You might be interested in
How many times greater is the value of 6 in 640700 than the value of the 6 in 67040
STatiana [176]
Its 10 times more ..................... :)
6 0
3 years ago
A boat traveled 120 miles downstream and back. The trip down stream took four hours. The trip back took 12 hours. Find the speed
Alexxandr [17]
When the boat travels downstream, the current helps it move faster because it works in the direction of travel. When the boat moves upstream, the opposite happens. So, let s be the speed of the boat in still water and c be the speed of the current, both in miles per hour.

Remember that rate * time = distance. Let's use this formula to write what happens when the boat is going downstream and upstream. When the boat goes downstream, the current goes in the same direction as the boat and speeds it up, so the rate is given by s + c. When the boat is going upstream, the current goes against the boat's movement and slows it down, so the rate is s - c. Thus,

Upstream: (s + c)(4 h.) = 120 mi.
Downstream: (s - c)(12 h.) = 120 mi.

This is now a system of equations. Let's first divide both sides of each equation by the time to get everything in miles per hour:

\left \{ {{s + c = 30 mph} \atop {s - c = 10 mph}} \right.

We can then add the two equations and solve for the speed of the boat in still water first:

(s + c) + (s - c) = 30 mph + 10 mph
2s = 40 mph
\bf s = 20 mph

Finally, we can find the speed of the current by plugging the speed of the boat back into one of the previous equations:

s + c = 30 mph
20 mph + c = 30 mph
\bf c = 10 mph
7 0
4 years ago
There are 15 books on a shelf. 9 of these books are new. The rest of them are used.
Delvig [45]

Answer:

a) 3:2

b)2:5

Step-by-step explanation:

Hope that helps!

4 0
3 years ago
1. Choose the correct simplification of the expression −5x2(4x − 6x2 − 3).
nlexa [21]
1) <span>30x4 − 20x3 + 15x2

This is the answer to 1. Don't forget to rearrange the terms in ascending order. That can trip people up. 

2) </span><span>x3 + 8x2 + 13

Don't forget to check the terms sign. The subtraction symbol switches them all. </span>
6 0
4 years ago
Can someone help me with this question
icang [17]

Answer:

(4,2)

Step-by-step explanation:

It's parallel, so all of them have to be on the same way.

The last point has to be at the same distance from the one right above it

8 0
2 years ago
Read 2 more answers
Other questions:
  • Solve these using elimination.1)x = 5 - 9y4x + 9y = -72)3x = 5y - 92y = 3x + 33)10x - 5 = 3y2x - 3y = 14)-6x - 4y = 10-12x - y =
    7·1 answer
  • Raymond just got done jumping at Super Bounce Trampoline Center. The total cost of his session was \$43.25$43.25dollar sign, 43,
    8·1 answer
  • Simplify: 11^3÷11^3×11^3
    12·1 answer
  • A river discharges 4 x 106 cubic feet of water into the
    9·1 answer
  • Select the correct solution in each column of the table.
    6·1 answer
  • WHAT'S Z? PLEASE HELP, URGENT!
    15·1 answer
  • Genetic Defects Data indicate that a particular genetic defect occurs in of every children. The records of a medical clinic show
    11·1 answer
  • What is the solution to the inequality 1/4(3x-6) &gt;2(7-x +1
    10·1 answer
  • Please help for 15 points! ​
    6·1 answer
  • Sin θ = 12/37. Find tan θ.
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!