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
yaroslaw [1]
3 years ago
12

Please help!

Mathematics
2 answers:
solmaris [256]3 years ago
8 0

Answer:

9m

Step-by-step explanation:

If Mrs. G is planning an expansion of her square back yard and side of the original backyard is increased by 5 m, the new total area of the backyard will be 196 m2. The length of each side of the original backyard is 9m.

x = length of original square

x + 5

Formula: A = s²

Therefore, the side length of the original backyard is 9 m.

ahrayia [7]3 years ago
4 0

Answer:

9 m

Step-by-step explanation:

If x is the length of the original square, then x+5 is the length of the new square.

Area of a square is the square of the side length, A = s².  Since the area of the new square is 196 m²:

196 = (x + 5)²

Solving, first take the square root of both sides:

±14 = x + 5

Subtract 5 from both sides:

x = -5 ± 14

x = -19, x = 9

x can't be negative, so x = 9.  The side length of the original backyard is 9 m.

You might be interested in
Pls help!!! I dont understand this
xxTIMURxx [149]

Answer: A and C

Step-by-step explanation:

So the largest rectangle has sides of 5 length and 2+4 width or 6 right. so 5*6=30 Now we have to find which of these expressions solve to get 30. I would just solve them all but the answer is

A and C

3 0
3 years ago
Read 2 more answers
What is 9 of 25% in the form of a whole number.
Yuliya22 [10]
I believe you are trying to say 25% of a number is 9, what is the number? in that case the answer is 36. just divide 9 by .25
8 0
3 years ago
6)
dybincka [34]

Answer:

C

Step-by-step explanation:

both 4 and -4 are 4 units away from 0

8 0
3 years ago
Read 2 more answers
Please help me out and show work
lina2011 [118]

Answer:

s(x)=\frac{0.2}{x+5}

Step-by-step explanation:

In 5 liters, there is 4% salt.

Lets find liters of salt.

First, converting 4% to decimal (dividing by 100):

4% = 4/100 = 0.04

0.04 * 5 = 0.2

So, there is 0.2 liters of salt.

Now, x liters of water is added to total, so total is now:

5 + x

The concentration of salt will be amount of salt divided by amount of salt water solution.

Amount of salt = 0.2 (as seen above)

Amount of new salt water solution = x + 5

So,

Concentration of salt in new solution is  \frac{0.2}{x+5}

2nd choice is right.

4 0
3 years ago
Please Help me!!! I have 5 more Questions left to ask.
Delicious77 [7]
Use photomath it will also help
5 0
3 years ago
Read 2 more answers
Other questions:
  • Which division problem does the number line best illustrate
    11·2 answers
  • Find the center and radius of the circle with equation (x - 6)2 + (y + 5)2 = 9. center (6,-5); radius 9 center (-6, 5); radius 3
    14·1 answer
  • Mark ran 4 3/4 miles on Monday and 2 1/5 ​ miles on Tuesday.
    12·1 answer
  • A student wants to reduce the size of a photograph that is 12 inches wide. She selects 75% on the photocopy machine. What will b
    11·2 answers
  • What is the coefficient of x4y4 in the expansion of (x + y)8?
    6·2 answers
  • Sin30=4/sqrt{3}/x<br><br><br> How to solve?
    12·1 answer
  • A turtle resides in the ocean water and on land. When underwater, the turtle reaches a depth of 3,000 feet below sea level. When
    9·2 answers
  • Shelly sleeps for 7 hours 30 minutes in a day. For how many hours did she sleep in the month of January?
    9·2 answers
  • Leg = 11 meters, Hypotenuse = 15 meters
    7·1 answer
  • 31. The angle measures of a triangle are 28°, 70°, and 82°. Classify the triangle by its angle measures.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!