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
Zielflug [23.3K]
2 years ago
10

5. Sean has 56 bills in his pockets. The bills are only fives and tens.

Mathematics
1 answer:
noname [10]2 years ago
3 0

Answer:

He have 43 bills of 10 and 13 bills of 5

Step-by-step explanation:

5x + 10y = 495

x + y = 56

Isolate x:

x = 56 - y

Substitute in the first equation:

5(56 - y) +10y = 495

280 -5y +10 y = 495

5y = 495 -280

5y = 215

y = 215/5

y= 43

Now substitute the value of y to find x:

x = 56 - y

x = 56 - 43

x = 13

You might be interested in
An aerospace company has submitted bids on two separate federal government defense contracts. The company president believes tha
gulaghasi [49]

Answer:

1)28.8%

2)28.8%

3)43.6%

Step-by-step explanation:

1))Probability of wining both = Probability that first contract is won* Probability that second contract is won = 0.4 * 0.72 = 0.288 = 28.8%

2)Probability of losing = 1 - Probability of winning

Probability that they will lose both contracts = Probability that first contract is lost * Probability that second contract is lost = (1 - 40/100) * (1 - 54/100) = 0.276 = 27.6%

3)Probability that any one is won = 1 - both contracts are won - both contracts are lost = 1 - 0.276 - 0.288 = 0.436 = 43.6%

7 0
3 years ago
Explain what you can tell just by comparing the symbols in the picture graph
olchik [2.2K]
Picture graphs usually show amounts using...pictures! So if you looked at the symbols, you can likely guess the amounts. It might show how many students preferred hamburgers by using a hamburger to represent every 5 students. Just by quickly glancing at a picture graph, you can usually tell which result is the greatest.
4 0
3 years ago
URGENT HELP ME OUT PLEASE 20 points <br><br> What are the solutions to the quadratic equation?
icang [17]
I think it’s c hope this helps you :)
8 0
2 years ago
Please help need to know the answer to this supposedly is 9 + (9x36) 333 but I don’t get it
Ahat [919]

Answer:

459

Step-by-step explanation:

First line:

clock showing 9 o'clock + clock showing 9 o'clock + clock showing 3 o'clock = 9 + 9 + 3 = 21

Second line:

The calculators look exactly the same.

3 * calculators = 30

1 calculator = 10

Third line:

1 bulb + 1 bulb - 1 bulb = 15

Since 1 bulb - 1 bulb = 0, we have 1 bulb + 0 = 15, or

1 bulb = 15

Last line:

Clock showing 9 o'clock = 9

Calculator = 10

3 bulbs = 3 * 15 = 45

Total = 9 + 10 * 45 = 9 + 450 = 459

7 0
3 years ago
Find the angle θθ between the vectors v=2i+kv=2i+k, w=j−3kw=j−3k.
kaheart [24]
Hello : 
v . w = <span>| | v | | × </span><span>| | w | |  cos(</span><span>θ) ....(1)
v(2,0,1)   w(0,1,-3)

</span>v . w = (2)(0)+(0)(1)+(1)(-3) = - 3
| | v | |  = √((2)²+(0)²+(1)²) = <span>√5
</span>| | w |  =  √((0)²+(1)²+(-3)²) = √10
by (1) : 
cos(θ) = (v . w ) /  | | v | | × | | w | |

cos(θ) = = - 3/√50
θ =.....   calculate by 2ind function ( calculator)

4 0
3 years ago
Other questions:
  • What numbers is the multiple of 6
    11·2 answers
  • Any one that knows this please help thanks!
    13·1 answer
  • -40+23 what is the sum
    15·2 answers
  • I got the wrong answer, does anyone know what the right answer is?
    12·1 answer
  • a shower head use is about 6 gallons of water per minute given m, the number of minutes write an equation that can be used to fi
    12·1 answer
  • Randolph is creating parallelogram WXYZ so that WX has an equation of y = 1 over 4x − 6. Segment YZ must pass through the point
    15·1 answer
  • 6th grade math<br><br> Find the area of the triangle and choose the appropriate result
    9·2 answers
  • HELPHELPHELPHELPHELP
    11·1 answer
  • elena went to a sporting goods store that was having a sale she bought a tennis racket and 3 cans of tennis balls the tennis rac
    8·1 answer
  • *URGENT 20 POINTS*
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!