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
tiny-mole [99]
3 years ago
11

PLEASE HELP!!

Mathematics
2 answers:
qaws [65]3 years ago
7 0

Answer:

586321

Step-by-step explanation:

ludmilkaskok [199]3 years ago
3 0

Answer:

x = 25.

Step-by-step explanation:

Original cost per person:: 2000/x

Changed cost per person:: 2000/(x-5)

---------------------------

Equation:: changed - original = 20

2000/(x-5) - 2000/x = 20

2000x - 2000x + 2000*5 = 20x(x-5)

10000 = 20x^2-100

 

----

500 = x^2 - 5x

------------------

x^2 - 5x - 500 = 0

(x+20)*(x-25) = 0

-----

Only positive root makes sense ====> x = 25.

You might be interested in
A bakery used 45% more butter this month than last month. If the bakery used 320 kilograms of butter last month, how much did it
zimovet [89]

Answer:

464 kg butter

Step-by-step explanation:

45% of 320 kg - 144

320+140-464

5 0
3 years ago
Use the formula for the area of a rectangle A = lw to answer the question. A rectangle has a length of n units. Its width is 6 u
svetlana [45]
A = L(w)
A= n(n-6)
A= n^2-6n
3 0
3 years ago
Evaluate the following expression.
VARVARA [1.3K]

Answer:

im pretty sure its -1

Step-by-step explanation:

hope this helps :)

7 0
3 years ago
Read 2 more answers
Trigonometry help questions in attachment
zavuch27 [327]
Use the law of sines....

sin51/x=sin90/67

x=(67sin51)/sin90

x=52.07

....

tan39=(h-1.8)/44

h-1.8=44tan39

h=44tan39+1.8

h=37.4 m

6 0
3 years ago
Exams are approaching and Helen is allocating time to studying for exams. She feels that with the appropriate amount of studying
svp [43]

Answer: 0.05

Step-by-step explanation:

Let M = Event of getting an A in Marketing class.

S = Event of getting an A in Spanish class,

i.e. P(M) = 0.80 , P(S) = 0.60 and P(M∩S)=0.45

Required probability = P(neither M nor S)

= P(M'∩S')

= P(M∪S)'                                 [∵P(A'∩B')=P(A∪B)']

=1- P(M∪S)                               [∵P(A')=1-P(A)]

= 1- (P(M)+P(S)- P(M∩S))   [∵P(A∪B)=P(A)+P(B)-P(A∩B)]

= 1- (0.80+0.60-0.45)

= 1- 0.95

= 0.05

hence, the probability that Helen does not get an A in either class= 0.05

3 0
3 years ago
Other questions:
  • My brother wants to estimate the proportion of Canadians who own their house.What sample size should be obtained if he wants the
    10·1 answer
  • PZLZ help with number 1
    6·2 answers
  • Which is the graph of f(x) = x2 – 2x + 3?
    12·1 answer
  • Which of the following equations have exactly one solution?<br> Choose all answers that apply:
    8·1 answer
  • Plz help ASAP !!!!!!!! Plzz
    5·1 answer
  • One notebook sells for $0.89. Mary can buy a package of 12 notebooks for $9.60. How much money can
    7·2 answers
  • X^2-x-12 factor completely
    10·1 answer
  • Please help me please​
    15·1 answer
  • I suck at math really vad
    9·1 answer
  • (Graphing Proportional Relationships HC)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!