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
babunello [35]
3 years ago
15

I really don’t understand what the questions asking? How do I solve this

Mathematics
1 answer:
Eddi Din [679]3 years ago
5 0

Answer:

$17.85

Step-by-step explanation:

Let the dollar amount per shirt be represented by s.

Let the dollar amount per pants be represented by p.

You have the following system:

3s+2p=104.81

2s+1p=61.33

If I multiply the bottom equation by -2, I can set the system up for elimination since the equations are already and the same form and I will have 2p and -2p in the same column there.  2p+(-2p)=0

Multiplying equation 2 by -2:

3s+2p=104.81

-4s-2p=-122.66

-----------------------Add the equations:

-1s      =-17.85

Multiply both sides by -1:

s=17.85

So one shirt cost $17.85

You might be interested in
Derrick had $100 to spend at a sporting goods store. He bought a pair of shorts for $11.36 and a pair of athletic shoes for $47.
olga_2 [115]

Answer:

$40.82

Step-by-step explanation:

Subtract $11.36 from $100 and you'll get $88.64 and then just subtract $47.82 and the answer is $40.82. Not sure if u know how to subtract but just line the decimals up and take the smaller number away from the bigger one so in this case it would just be 100-11.36=88.64 and since he spent more money it would be 88.64-47.82=40.82

6 0
2 years ago
Read 2 more answers
The points (4,k) and (5,-8) fall on a line with a slope of -7. what is the value of k?
babunello [35]

Answer:

k= -1

Step-by-step explanation:

To find k, use the points and the m =-7 in the slope formula:

m=\frac{y_2-y_1}{x_2-x_1}\\\\-7=\frac{-8-k}{5-4} \\\\-7 = \frac{-8-k}{1}\\\\-7=-8-k\\\\k = -8+7\\\\k=-1

4 0
3 years ago
Customers arrive at a service facility according to a Poisson process of rate λ customers/hour. Let X(t) be the number of custom
mash [69]

Answer:

Step-by-step explanation:

Given that:

X(t) = be the number of customers that have arrived up to time t.

W_1,W_2... = the successive arrival times of the customers.

(a)

Then; we can Determine the conditional mean E[W1|X(t)=2] as follows;

E(W_!|X(t)=2) = \int\limits^t_0 {X} ( \dfrac{d}{dx}P(X(s) \geq 1 |X(t) =2))

= 1- P (X(s) \leq 0|X(t) = 2) \\ \\ = 1 - \dfrac{P(X(s) \leq 0 , X(t) =2) }{P(X(t) =2)}

=  1 - \dfrac{P(X(s) \leq 0 , 1 \leq X(t)) - X(s) \leq 5 ) }{P(X(t) = 2)}

=  1 - \dfrac{P(X(s) \leq 0 ,P((3 \eq X(t)) - X(s) \leq 5 ) }{P(X(t) = 2)}

Now P(X(s) \leq 0) = P(X(s) = 0)

(b)  We can Determine the conditional mean E[W3|X(t)=5] as follows;

E(W_1|X(t) =2 ) = \int\limits^t_0 X (\dfrac{d}{dx}P(X(s) \geq 3 |X(t) =5 )) \\ \\  = 1- P (X(s) \leq 2 | X (t) = 5 )  \\ \\ = 1 - \dfrac{P (X(s) \leq 2, X(t) = 5 }{P(X(t) = 5)} \\ \\ = 1 - \dfrac{P (X(s) \LEQ 2, 3 (t) - X(s) \leq 5 )}{P(X(t) = 2)}

Now; P (X(s) \leq 2 ) = P(X(s) = 0 ) + P(X(s) = 1) + P(X(s) = 2)

(c) Determine the conditional probability density function for W2, given that X(t)=5.

So ; the conditional probability density function of W_2 given that  X(t)=5 is:

f_{W_2|X(t)=5}}= (W_2|X(t) = 5) \\ \\ =\dfrac{d}{ds}P(W_2 \leq s | X(t) =5 )  \\ \\  = \dfrac{d}{ds}P(X(s) \geq 2 | X(t) = 5)

7 0
3 years ago
1 tank of propane holds 5 gallons and will last 12 hours. how many gallons of propane is needed for 240 hours.
MAVERICK [17]

5 gallons        x gallons

------------- = ----------------

12 hours       240 hours


using cross products

5 * 240 = 12 * x

1200 = 12 x

divide each side by 12

1200/12 = 12x/12

100 =x

You will need 100 gallons

8 0
3 years ago
Read 2 more answers
Solve the inequality :<br> x-7 ≤ 3x + 1
Nina [5.8K]

Answer:

See below.

Step-by-step explanation:

x-7≤3x+1

 +7     +7

x≤3x+8

-3x -3x

-2x≤8

/-2   /-2

x≥-4

The inequality symbol reverses when divided/multiplied by a negative term.

-hope it helps

6 0
2 years ago
Read 2 more answers
Other questions:
  • The length of a rectangle is 24 units. Can the perimeter x of the rectangle be 60 units when the width y is 11 units
    13·1 answer
  • Solve for n: -4 (3n+3) = 5 (-2-6n) -2
    13·2 answers
  • You buy a new laptop for
    8·2 answers
  • Jenifer got a job as a waitress in the evening to help
    13·2 answers
  • H(x)=5^3-x even or odd
    13·1 answer
  • A car travels to 253 miles in eight hours how far can you travel in seven hours?
    7·1 answer
  • Two students, Abby and Melissa go for a walk. Abby begins walking 30 seconds earlier than Melissa .
    14·2 answers
  • The triangle and the rectangle below have the same area.
    6·1 answer
  • Subtract w from u, then subtract v from the result
    12·1 answer
  • <img src="https://tex.z-dn.net/?f=x%20%5C%3A%20varies%20%5C%3A%20as%20%5C%3A%20product%20%5C%3A%20u%20%5C%3A%20v%20%5C%3A%20and%
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!