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
viktelen [127]
3 years ago
9

3) The girls soccer team is doing a fund- raiser for new soccer uniforms. They need to raise at least $2,000. A local merchant h

as promised to donate up to 150 plain and deluxe t-shirts to help the team with their fundraiser. Plain t- shirts sell for $8 each and fancy t-shirts sell for $12 each. Write a system of inequalities to represent the given scenario. If the soccer team sells 70 fancy t shirts, what is the minimum number of plan tees they need to sell?
Mathematics
1 answer:
USPshnik [31]3 years ago
4 0

Answer:

Step-by-step explanation:

Let x represent the number of plain T-shirts that were sold.

Let y represent the number of fancy T-shirts that were sold.

A local merchant has promised to donate up to 150 plain and deluxe t-shirts to help the team with their fundraiser. This means that

x + y ≤ 150

Plain t- shirts sell for $8 each and fancy t-shirts sell for $12 each. Therefore, the total cost of x plain T-shirts would be 8x and the total cost of x fancy T-shirts would be 12x

They need to raise at least $2,000. This means that

8x + 12y ≥ 2000

If the soccer team sells 70 fancy t shirts, then,

8x + 12 × 70 ≥ 2000

8x ≥ 2000 - 840

8x ≥ 1160

x ≥ 1160/8

x ≥ 145

The minimum number of plain t-shirts that they need to sell is 145

You might be interested in
Please help! I’m not good at this type of stuff
docker41 [41]
What’s the question
8 0
3 years ago
Read 2 more answers
Customers arrivals at a checkout counter in a department store per hour have a Poisson distribution with parameter λ = 7. Calcul
IgorLugansk [536]

Answer:

(1)14.9% (2) 2.96% (3) 97.04%

Step-by-step explanation:

Formula for Poisson distribution: P(k) = \frac{\lambda^ke^{-k}}{k!} where k is a number of guests coming in at a particular hour period.

(1) We can substitute k = 7 and \lambda = 7 into the formula:

P(k=7) = \frac{7^7e^{-7}}{7!}

P(k=7) = \frac{823543*0.000911882}{5040} = 0.149 = 14.9\%

(2)To calculate the probability of maximum 2 customers, we can add up the probability of 0, 1, and 2 customers coming in at a random hours

P(k\leq2) = P(k=0)+P(k=1)+P(k=2)

P(k\leq2) = \frac{7^0e^{-7}}{0!} + \frac{7^1e^{-7}}{1!} + \frac{7^2e^{-7}}{2!}

P(k \leq 2) = \frac{0.000911882}{1} + \frac{7*0.000911882}{1} + \frac{49*0.000911882}{2}

P(k\leq2) = 0.000911882+0.006383174+0.022341108 \approx 0.0296=2.96\%

(3) The probability of having at least 3 customers arriving at a random hour would be the probability of having more than 2 customers, which is the invert of probability of having no more than 2 customers. Therefore:

P(k\geq 3) = P(k>2) = 1 - P(k\leq2) = 1 - 0.0296 = 0.9704 = 97.04\%

4 0
3 years ago
Simplify.(6x−5+4x^2)+(2x−2)
leonid [27]
  • Combine Like Terms

=6x + −5 + 4 x 2 + 2x + −2

=(4 x 2) + (6x + 2x) + (−5 + −2)

=4 x 2 +8x + −7

Answer - 4 x 2 + 8x + −7

7 0
3 years ago
Read 2 more answers
A local store buys used video games. For each game bought, they will pay $18 less than the original price paid for the game. Whi
LenKa [72]

Answer:

d

Step-by-step explanation:

I already did this before

4 0
3 years ago
Is a cube a polygon? Why or why not?
SOVA2 [1]
No, because a polygon has to be vertical and a cube is straight.
4 0
4 years ago
Read 2 more answers
Other questions:
  • If i put 2 table spoons of sugar in koolaid how much water should i add.
    15·1 answer
  • I don’t understand all 3 of them
    7·1 answer
  • 42 divided by 6 in repeated subtraction
    15·2 answers
  • B is inversely proportional to a When a = 4 , b = 6 Determine the value of b when a = 8
    13·1 answer
  • 36 kg bag of cement was dropped losing one tenth of cement. How much was left in the bag of cement ?
    7·2 answers
  • For each expression, select all equivalent expressions from the list.
    7·1 answer
  • How do I show my work for 25 x 3/5=15​
    7·1 answer
  • -(7-9)z-6z=8(-6+2) solve for z
    9·1 answer
  • Christine exercises more than 40 minutes per day.
    8·1 answer
  • Ap:3, 2, 1....<br>what is its coomon difference ​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!