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
prisoha [69]
3 years ago
15

27 students in all 4:5 packed lunch. how many students packed lunch

Mathematics
1 answer:
bonufazy [111]3 years ago
5 0
\bf \stackrel{total}{27}\qquad 4:5\qquad \cfrac{4}{5}\implies \cfrac{4\cdot \frac{27}{4+5}}{5\cdot \frac{27}{4+5}}\implies \cfrac{4\cdot 3}{5\cdot 3}\implies \cfrac{\stackrel{packed~lunch}{12}}{\stackrel{did~not~pack~lunch}{15}}
You might be interested in
How to Solve 9=m-4<br> And check answer
Natalija [7]
Do 9+4 because you need to get m alone. you get 13 plug 13 in for m (13-4=9) and then 9=9
7 0
3 years ago
Simply (-8.5)(-5)(-2). Help 21 POINTS
Serggg [28]

(-8.5)(-5)(-2)

= (-8.5)(10)

= -85

answer

- 85

6 0
3 years ago
Read 2 more answers
Write an augmented matrix for the following system of equations
chubhunter [2.5K]
Just use the coefficients for each variable and put it in a matrix. Is the second question set equal to something? Because then you would put it in place as the question mark. (Did the pic come through?)
So the 3x3 matrix is made up of the coefficients and then to augment the matrix, you add another column at the end with the solutions. Good luck!

6 0
3 years ago
WILL MARK BRILLIANT !!<br><br><br> Calculate the sales tax of 6.35% on a bill of $45.25 .
Arlecino [84]

Answer:

2.873375

Step-by-step explanation:

3 0
3 years ago
18 is 60% of what number
LuckyWell [14K]
Let n be the number 18=60% of n
18=0.6n
18/0.6=n
30=n
3 0
3 years ago
Read 2 more answers
Other questions:
  • a company makes wax candles in the shape of a cylinder. each candle has a diameter of 8 inches and a height of 3 inches. How muc
    9·1 answer
  • Find the missing dimension height:15ft area285ft
    6·1 answer
  • Polynomial standard form for the square root of 7n^4
    7·1 answer
  • Write the equation of the line that passes through the points (3,-2) and (5, -1).
    5·1 answer
  • Evaluate the expression (ab)2 for a = 4 and b = 3. A. 36 B. 24 C. 81 D.144
    6·1 answer
  • 13mm = 1.5inch how many inches is 7mm
    7·2 answers
  • Find 2/3 of 18. Draw a set and shade to show your thinking.
    8·1 answer
  • At the start of the summer, you have $603.15 in the bank. You make deposits of $90.89 in June, $106.03 in July, and $70.04 in Au
    14·1 answer
  • a local newspaper story reports that 8% of the 7968 students at the college work full time, how many students work full time
    12·1 answer
  • Need this by midnight please show your work :)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!