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
viva [34]
3 years ago
8

A lot is 21 ft by 30 ft. To support a fence, an architect wants an upright post at each corner and an upright post every 3 ft in

between. How many of these posts are needed?
Mathematics
1 answer:
Bogdan [553]3 years ago
6 0
What we know:
Lot= 21 x 30ft
Perimeter=2l+2w
Want to put 4 corner post and one post every 3 ft

What we need to find:
How many post we need.

Perimeter=2 (21)+2 (30)=42+60=102ft

102/3=34

34 posts are needed.
You might be interested in
PLEASE HELP ASAP!!! PLEASE ALSO GIVE EXPLANATION WITH EQUATION AND WORDS!!
tia_tia [17]

Using proportions, it is found that the two cities are 27.5 miles apart.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three. Due to this, relations between variables, either direct or inverse proportional, can be built to find the desired measures in the problem.

From the given scale, we have that <u>each inch of distance represents 10 miles</u>. Hence the distance in miles for a distance of 2 and 3/4 miles = 2.75 miles is given by:

D = 10 x 2.75 = 27.5 miles.

Hence, the two cities are 27.5 miles apart.

More can be learned about proportions at brainly.com/question/24372153

#SPJ1

3 0
1 year ago
Recently, the value of a house increased by 20.5%.
ioda
550,000 x .205 = 112,750
550,000 + 112,750 = $662,750
To find the % of something, just move the decimal 2 places to the left to multiply.
8 0
3 years ago
What is the result when 3/8x + 2 1/5 is subtracted from 3 1/2x - 4 1/10?<br><br> Don’t put a link.
Umnica [9.8K]

Answer:

Option 3 3 1/8x - 6 3/10

Step-by-step explanation:

(3 1/2x - 4 1/10) - (3/8x + 2 1/5)

Divide it into parts:

(3 1/2x - 3/8x) + (-4 1/10 - 2 1/5)

3 1/2x - 3/8x = 3 4/8x - 3/8x = 3 1/8x

-4 1/10 - 2 1/5 = -4 1/10 - 2 2/10 = -6 3/10

So we get:

2 1/4x - 6 3/10

6 0
3 years ago
Read 2 more answers
Can someone please help
Rashid [163]

Answer:

It shifted 6 units down

Step-by-step explanation:

Do the graph normally without the k and compare them side by side.

8 0
2 years ago
1. Gerald is an event photographer. In his
Effectus [21]

The information is really hard to follow, you should ask the question with a screenshot of the data table.

6 0
3 years ago
Other questions:
  • A certain line has the equation ax + by = c where a&gt;0, b&lt;0, and c&lt;0. state the x- and y-intercepts, and the slope
    7·1 answer
  • The mathematical fact: a(b+c) = ab + ac<br> ______________________________
    6·1 answer
  • Volume in barrels of a tank 38.622 feet in diameter by 16 feet in height
    11·1 answer
  • TEN POINTS !!!!1 simplify the expression 64^1/3
    12·2 answers
  • What angle is this?
    15·1 answer
  • PLEASE HELP QUICKLY!!! i have no idea what i’m doing
    10·1 answer
  • I neeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeedddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd
    14·1 answer
  • Carrie sent 190 total text messages in the first
    13·1 answer
  • You buy school clothes during a sale when everything in the store is 15% off. Which of the following could describe
    7·1 answer
  • A buyer purchases 20 percent of the 22000 widgets in a warehouse's inventory. The next day, another buyer purchases 10 percent o
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!