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
Gennadij [26K]
3 years ago
5

The sum of the areas of two square plots of land is 2650 m^2 and the difference of their areas is 1400 m^2. Find the length of a

side of each plot
Mathematics
1 answer:
Sav [38]3 years ago
6 0

Answer:

The length of one plot is 45m & the other length is 25m

Step-by-step explanation:

Let length one sq. plot = x length other sq. plot = y

area of square = length²

x² + y² = 2650 -----(1)

x² - y² = 1400 ------(2)

(1)+(2)

2x² = 4050

x² = 2025

x = 45

subx²=2025into(1)

2025 + y² = 2650

y² = 625

y = 25

You might be interested in
A survey of 600 randomly selected high school students determined that 290 play organized sports. what is the probability that a
blsea [12.9K]

Answer:

29/60

Step-by-step explanation:

probability of playing is 290/600 which when simplified is29/60

5 0
1 year ago
The value of a car reduces by 30% every 6 months. A car costs $15,000 when new. What is the value of the car after 2 years?
Allisa [31]
6 months goes into 2 years 4 times
30 x 4 = 120
120% of 15,000 is
100% is 1,500
10% is 150
150 x 2 = 300 (20%)
1,500+300=1,800
15,000+1,800=16,800
hope this helped
3 0
3 years ago
Solve each system using SUBSTITUTION. Remember to check!
Annette [7]

Answer:

\left \{ {{x=3} \atop {y=-7}} \right.

Step-by-step explanation:

We can directly substitute y of the first equation to the second equation.

-2x - 1 = 3x - 16

5x = 15

x = 3

Substituting back to any of the two equations, we get y = -2(3)-1 = -7.  If you check with the second equation, y = 3(3)-16 = -7 as well.

Therefore \left \{ {{x=3} \atop {y=-7}} \right..

7 0
2 years ago
Please help asap!! Due today!
Gwar [14]

Answer:

No for the first

Step-by-step explanation:

Sorry i do not know the second one bt the first one is No it is not a right angle

5 0
2 years ago
I NEED HELP MAN PLEASE!!!! nobody is helping rn ):
igor_vitrenko [27]
B is the first term
c is the common ratio

if the first term is x and the 2nd is y then x times c=y

so
-5 times what=10?
what=-2
c=-2
the first term is -5

-5(-2)^(n-1)

b=-5
c=-2
8 0
3 years ago
Other questions:
  • How do you prove this?
    5·1 answer
  • Jessica sold 16 times more books than Josh together they sold 238 books how many did each one of them sell
    15·2 answers
  • 3w - 4w = 8 2w+ 3w =-6
    11·1 answer
  • Last Wednesday, students could choose ham or turkey sandwiches for lunch. The cafeteria made 60 sandwiches in all, 90% of which
    11·2 answers
  • Work out 25% of 30 meters?
    5·2 answers
  • The ratio of the volume of soda in glass A to the volume of glass B is 8/3 to 7/2
    10·1 answer
  • Original Price:<br> $25.00<br> Take 10% off,<br> and then take<br> $1.00 off that<br> amount:
    5·1 answer
  • Which is the correct stem-and-leaf plot for the data set?<br> 16, 15, 47, 41, 40, 39, 16, 37
    13·1 answer
  • Use the given figure to complete the statement below. is the bisector of ∠COA.
    5·1 answer
  • The sum of two The perimeter of a rectangle is 30cm. If the length is 3 cm longer than the width, find
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!