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
lidiya [134]
2 years ago
5

The school store sells Midville High T-shirts for $12 each and Midville High gym shorts for $9 a pair. One afternoon they sold a

total of 53 T-shirts and pairs of shorts for a total of $570 . How many T-shirts did they sell and how many pairs of shorts did they sell?
Mathematics
1 answer:
Oksi-84 [34.3K]2 years ago
7 0

Answer:

The store sold 21 T-shirts and 18 pairs of shorts.

Step-by-step explanation:

x = the number of T-shirts sold

y = the number of pairs of shorts sold

x + y = 53

12x + 9y = 570

x = 21 T-shirts

y = 18 shorts

You might be interested in
X^2+1=0<br> What are the roots of this equation?<br> Thanks!
Hitman42 [59]
X² + 1 = 0

=> (x+1)² - 2x = 0

=> x+1 = √(2x)

or x - √(2x) + 1 = 0

Now take y=√x

So, the equation changes to

y² - y√2 + 1 = 0

By quadratic formula, we get:-

y = [√2 ± √(2–4)]/2

or √x = (√2 ± i√2)/2 or (1 ± i)/√2 [by cancelling the √2 in numerator and denominator and ‘i' is a imaginary number with value √(-1)]

or x = [(1 ± i)²]/2

So roots are [(1+i)²]/2 and [(1 - i)²]/2

Thus we got two roots but in complex plane. If you put this values in the formula for formation of quadratic equation, that is x²+(a+b)x - ab where a and b are roots of the equation, you will get the equation

x² + 1 = 0 back again
So it’s x=1 or x=-1

5 0
3 years ago
Read 2 more answers
Find the value of y.​
Bess [88]

Answer:

=6√3 the third option.

Step-by-step explanation:

We can use the Pythagoras theorem to find the value of y. We need two equations that include y.

a²+b²=c²

c=9+3=12

x²+y²=12²

x²=144 - y².........i (This is the first equation)

We can also express it in another way but let us find the perpendicular dropped to c.

perpendicular²= x²-3²=x²-9 according to the Pythagoras theorem.

y²=(x²-9)+9²

y²=x²+72

x²=y²-72....ii( this is the second equation

Let us equate the two.

y²-72=144-y²

2y²=144+72

2y²=216

y²=108

y=√108

In Surd form √108=√(36×3)=6√3

y=6√3

8 0
3 years ago
The ratio of men to women working for a company is 8 to 5 . If there are 125 women working for the company, what is the total nu
kobusy [5.1K]

Answer:

325 employees

Step-by-step explanation:

men to women is

8:5

125/5 is 25

8*25=200

200+125=325

325 employees

3 0
3 years ago
Read 2 more answers
Quick Math, 75% of 180?
sdas [7]
75% = 3/4
3/4 of 180 = 135
5 0
3 years ago
What is the phase shift? Please show work.
MatroZZZ [7]

Answer:

π/8

Step-by-step explanation:

Phase shift = c/b

= (π/2) / 4

= π/8

5 0
2 years ago
Other questions:
  • Please help FAST!!<br><br> Which equation represents the graph of the linear function?
    12·1 answer
  • WA UTILEHTE.
    12·1 answer
  • If f(x)= 4x+3 and g(x)= 3x evalute f(x). g(x) for x=-1 over 2
    10·1 answer
  • Find the slope of the line that passes through the pair of points listed below.
    12·1 answer
  • What is half of 16 3/4
    8·1 answer
  • 3x + 2y = 4 and -2x + 2y = 24? *
    15·1 answer
  • Describe the rule for the sequence. 3,5, 8, 13, 21, 34, ...
    15·1 answer
  • 20 is less than the difference of 5 and twice x.
    8·1 answer
  • Pls tell the value of Y pls pls
    11·2 answers
  • What is the solution for 8 = x + 1?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!