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
Murrr4er [49]
4 years ago
7

A city park commission received a donation of playground equipment from a parents' organization. The area of the playground need

s to be 256 square yards for the children to use it safely. The playground will be rectangular.
The city will also put a fence around the playground. The perimeter, P, of the fence includes the gates. To save money, the city wants the least perimeter of fencing for the area of 256 square yards.

Jovana was trying to find a formula for that perimeter with one side 8 yards longer than the other side using the area. In which step did she make a mistake? Explain her mistake and give the correct formula.

Mathematics
1 answer:
shepuryov [24]4 years ago
5 0

Answer:

step 3 she didn’t distribute the x correctly

Step-by-step explanation:

You might be interested in
pls help me with this if you know it also to explain it thanks Solve the equation -21 + 70n = 77 for n.
gogolik [260]

Answer:

n = 1 2/5

Step-by-step explanation:

-21 + 70n = 77

Add 21 to each side

-21+21 + 70n = 77 +21

70n = 98

Divide each side by 70

70n/70 = 98/70

n =98/70

n = 70/70 +28/70

n = 1 + 2/5

n = 1 2/5

6 0
4 years ago
A two digit number is such that the sum of the ones and the tens digit is ten. If the digits
Tema [17]

Answer:

The original number is 28

Step-by-step explanation:

start by listing all possible combinations of digits that give 10 when added:

19 (1+9=10)

28 (2+8 =10)

37 (3+7=10)

46 (4+6=10)

55 (5+5=10)

Look into the order of digits reversed and what the difference with the original number gives:

1)  19  reversed is 91 then when we subtract 91 - 19 we obtain 72

2) 28 reversed is 82 hen when we subtract 82 - 28 we obtain 54 which is the combination we where trying to find.

Notice as well, that as we go down the list, the differences between reversed digit number and original become smaller (and ends being zero for the number 55), so they do not satisfy the requirement.

Therefore 28 is the answer, since 82 (the new number formed when the digits are reversed) exceeds the original number by 54.

8 0
3 years ago
Read 2 more answers
1 Mrs. Castro has 100 spoon and 80 forks if she put them in buckets what is the biggest number of spoon or forks that bucket wil
Yuri [45]

Answer:

10

Step-by-step explanation:

Here, we want to get the biggest number of spoon or forks that the bucket will have

What we have to do here is to simply find the greatest common factor of 100 and 80

Finding the greatest common factor of both will

give the biggest number of spoon or forks that the bucket will have

Mathematically, the greatest common factor of 80 and 100 is 10

3 0
4 years ago
SIMPLIFY THE EXPRESSION (m − 1)(-4)
Aleonysh [2.5K]

Answer:

The answer is -4m + 4

Step-by-step explanation:

you just distribute -4

8 0
3 years ago
7th grade math plz help
mina [271]

Answer:

x = 3

y = 3/2

Step-by-step explanation:

look at the hangers to form an equation:

x + x + x + 3 + 3 + 3 = x + x + y + y + y + y

simplify

3x + 3 = 2x + 4y

x + 3 = 4y

x = 4y - 3

you also know that

x + x = y + y + y + y

2x = 4y

substitute x = 4y - 3 into this equation ^

2x = 4y

2(4y - 3) = 4y

8y - 6 = 4y

4y = 6

y = 6/4

y = 3/2

2x = 4y

2x = 12/2

2x = 6

x = 3

7 0
3 years ago
Other questions:
  • Enter the quadratic equation
    14·1 answer
  • PlZZ explain. I"m confused.
    11·1 answer
  • (4a^2b-3ab^2+2ab+5)+(2ab^2b+3ab^2-7ab)
    5·1 answer
  • NEED HELP ASAP!!!!!!
    14·1 answer
  • Write an addition expression and a subtraction expression each with a value of 2.4 x 10^-3
    6·1 answer
  • Which is greater,3/4 11/16. Explain your answer
    12·2 answers
  • Ursula has 1/2 cup of butter she uses 1/4 of it to make a batch of brownies how many batches can she make with 1/2 cup of butter
    7·1 answer
  • Is y=3x+6 a function?
    6·1 answer
  • Help? <br> The circumference of a circle is 25 cm. Find the length of the radius
    13·2 answers
  • Select the value for “a” that makes this equation true: 45 = 2a +4a + 3
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!