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
Sergeeva-Olga [200]
2 years ago
10

Kristin spent $131 on shirts. Fancy shirts cost $28 and plain shirts cost $15. If she bought a total of 7 then how many of each

kind did she buy
Mathematics
1 answer:
Tpy6a [65]2 years ago
3 0
Hi there!!

First, Let plain shirts be x
Let fancy shirts be y 
x + y = 7
15x + 28y = 131 
Multiply first equation by 28 to eliminate y: 
28x + 28y = 196
<span>15x + 28y = 131 
</span>Subtracting the two equations:
13x = 65
<span>x = 5 </span>
Substituting x to get y:
x + y = 7
5 + y = 7
<span>y = 2 </span>
<span>Answer: 5 plain shirts and 2 fancy shirts
</span>
Hope this helps u!!
Have an amazing rest of ur day:)))
You might be interested in
Which of the following statements are true?
bezimeni [28]

Answer:

A, B, and C are all true.

Step-by-step explanation:

A. 6 is neither a perfect square nor a perfect cube.   True

B. 16 is a perfect square.   True 4^{2}

C. 27 is a perfect cube.   True 3^{3}

OD. 1,331 is both a perfect square and a perfect cube.   False

E. 9 is a perfect cube.  False

6 0
3 years ago
Fraction equivalent to 3/12
Rufina [12.5K]
Two of them are 1/4 and 2/8! Hope this helps:)


7 0
3 years ago
Read 2 more answers
Where does the point (0, - 3) lie?
gregori [183]

An ordered pair is written like this, ( x, y ). In this case x = 0 and y = -3. On a graph the vertical line is the y-axis and the horizontal line is the x-axis. The origin is point ( 0, 0 ). To the left of the origin on the x-axis is the negative number line and to the right is the positive number line. On the y-axis, south of the origin is the negative number line and north is the positive number line. When you plot a point on a graph you do x first, so if x equals 1, you would move one right, -1, one left. IF y were to equal 2 then from the place where you are on the x-axis, 1, you would move two up, -2, two down. In this case x = 0 so you would stay at the origin, and y = -3 so you would move 3 down. So ( 0, -3 ) would lie negative y-axis. The answer is D.

3 0
3 years ago
The function h(t)= -2(t-3)^2+23 represents the height, in feet, t seconds after a volleyball is served.Which of the following st
Tatiana [17]

What are the statements?


4 0
3 years ago
Help! this is in algebra 1
Scrat [10]

Answer: I have the pictures attached


Step-by-step explanation:

In order to graph this, we have to get it into this equation: y = mx + b, where m = slope and b = y intercept.

y = 3/2x - 4 is already in this form.

2y + 4 = 2 + 3x is not, so we have to isolate y

2y + 4 - 4 = 2 + 3x - 4

2y = -2 + 3x

2y/2 = -2/2 + 3x/2

y = -1 + 3/2x

y = 3/2x - 1

Okay, now graph it knowing your y intercepts and your slopes.

7 0
3 years ago
Other questions:
  • alex buys 12 DVDs.each DVD cost $15. if alex receives a $4 discount on each DVD, what is the total amount of money Alex spends?
    15·1 answer
  • How many four-digit personal identification numbers (PIN) are possible if the PIN cannot begin or end with a 0 and the PIN must
    13·2 answers
  • Find the amount in a continuously compounded account for the following condition.
    5·1 answer
  • It cost $3.99 for 25 fl. oz. of detergent or $6.99 for 90 fl. oz. Which is a better buy?
    6·2 answers
  • Suppose that two people standing 2 miles apart both see the burst from a fireworks display. After a period of​ time, the first p
    12·1 answer
  • I need help with the first row it’s all talking about the triangle on Monday
    9·1 answer
  • Please help me with this
    15·1 answer
  • Does anyone know how to solve this?
    12·1 answer
  • I need all three answers fast pls
    8·1 answer
  • Please Help!!! Will give brainliest
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!