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
PolarNik [594]
3 years ago
13

Solve the system of equations. 2x y = 7 5x y = 9

Mathematics
1 answer:
lana [24]3 years ago
7 0
Are you missing something?
2xy=7
5xy=9 
does not have a solution.
If you mean
2x+y=7
5x+y=9
please say so.
You might be interested in
I need help urgent plz someone help me solved this problem! Can someone plz help I’m giving you 10 points! I need help plz help
VMariaS [17]

Answer: a) 8.779 years

               b) 8.664 years

<u>Step-by-step explanation:</u>

a)

A=P\bigg(1+\dfrac{r}{n}\bigg)^{nt}

  • A: accumulated amount (balance)
  • P: principal amount (original/initial investment)
  • r: interest rate (convert to a decimal)
  • n: number of times compounded per year
  • t: number of years

Given: A = 1800, P = 900, r = 8% = 0.08, n = 3, t = unknown

1800=900\bigg(1+\dfrac{0.08}{3}\bigg)^{3t}\\\\\\2=\bigg(1+\dfrac{0.08}{3}\bigg)^{3t}\\\\\\ln\ 2=ln \bigg(1+\dfrac{0.08}{3}\bigg)^{3t}\\\\\\ln\ 2=3t\ ln\bigg(1+\dfrac{0.08}{3}\bigg)\\\\\\\dfrac{ln\ 2}{3\ ln\bigg(1+\dfrac{0.08}{3}\bigg)}=t\\\\\\\large\boxed{8.779=t}

b)  

A=Pe^{rt}

1800=900e^{0.08t}\\\\\\2=e^{0.08t}\\\\\\ln\ 2=0.08t\\\\\\\dfrac{ln\ 2}{0.08}=t\\\\\\\large\boxed{8.664=t}

4 0
2 years ago
A circle has a circumference of 11,304 units
user100 [1]
Circumference = 2 pi r

11304 = 2 x 22/7 x r
11304 x 7/2x22 =r = 1798.36
8 0
3 years ago
Read 2 more answers
The circumference of a circle is 78.5 inches.
blagie [28]

Answer:

about 490.38

Step-by-step explanation:

7 0
2 years ago
In Heavenly Hash ice cream, the ratio of cashews to marshmallows to chocolate ice cream is 1:3:36 by volume.
tamaranim1 [39]

Answer:

90%

Step-by-step explanation:

36/40 = 90%

7 0
3 years ago
Read 2 more answers
Then find the values of x and y?
attashe74 [19]
Y+8=3y
-2y=-8
y=4

104*2=208
360-208=152
152/2=76

x=76°
6 0
3 years ago
Read 2 more answers
Other questions:
  • Felicia scored 15 points in the first half and 33 points in all. how many points did she score in the second half
    9·1 answer
  • Tom gets $12 off a box of chocolates that had an original price of $48. What percentage is the discount ?
    7·2 answers
  • I need help with this work problem please. I put the picture of problem thank you.
    5·1 answer
  • For a school event 1/6 of the athletic field is reversed for the fifth -grade classes the reserved part of the field is divided
    5·1 answer
  • In Triangle XYZ, m triangles?<br> O XYZ = TUV<br> O XYZ = VUT<br> O No congruency statement can be made because only two angles
    14·1 answer
  • Write an expression to represent the product of 6 and the square of a number plus 15.
    6·2 answers
  • PLEASE HELPPP!!!!
    8·1 answer
  • How many 3 digit whole numbers are there between 99 and 1000
    5·2 answers
  • PLEASE HELP MEEE!
    14·1 answer
  • At the end of a snow storm, Audrey saw there was a lot of snow on her front lawn. The temperature increased and the snow began t
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!