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
weqwewe [10]
3 years ago
12

A human factors expert recommends that there be at least 9 square feet of floor space in a college classroom for every student i

n the class. Find the minimum floor space that 87 students require
Mathematics
1 answer:
Aliun [14]3 years ago
6 0
I think the answer is 783 square feet.
You might be interested in
Please help with simple probability question. Extra points & brainliest. Thanks in advance.
kodGreya [7K]
The answer is B) 1/3.

There are 6 faces on a rectangular prism, each of which is a rectangle.  

The area of the front and back is given by 25(8) = 200 sq. cm.
The area of the bottom and top is given by 25(4) = 100 sq. cm.
The area of the right and left is given by 4(8) = 32.

There are 2 faces out of 6 with an area that is not a multiple of 100; 2/6 = 1/3.
3 0
3 years ago
victor are 60 de lei si merge la florarie pentru a-i cumpara mamei sale un buchet de flori. daca ar cumpara 9 garoafe si 4 trand
Alja [10]

Answer:

Număr de trandafiri = x = 5 trandafiri

Numărul este garoafe = y = 8 garoafe

Step-by-step explanation:

Pasul 1

Să reprezentăm:

Costul garoafelor = c

Costul trandafirilor = r

Victor are 60 de lei și merge la florărie să-i cumpere mamei sale un buchet de flori.

Dacă ar cumpăra 9 garoafe și 4 trandafiri, ar plăti 47 de lei.

Prin urmare,

9c + 4r = 47 ..... Ecuația 1

Dacă ar cumpăra doar trandafiri, toți banii ar fi suficienți pentru 12 bucăți.

Prin urmare,

12 trandafiri = 60 lei

1 trandafir = r lei

Cross Multiply

12r = 60 lei

r = 60 lei / 12

r = 5 lei

1 trandafir costă 5 lei

Înlocuim 5 cu r în ecuația 1

9c + 4 × 5 = 47

9c + 20 = 47

Colectează ca termeni

9c = 47 - 20

9c = 27

c = 27/9

c = 3 lei

Costul unei garoafe este de 3 lei

Pasul 2

Dar cumpără 13 flori (garoafe și trandafiri) și rămâne cu 5 lei rămași,

60 lei - 5 lei = 55 lei

Asta înseamnă că a cheltuit 55 de lei pe 13 flori.

Lasă

Număr de trandafiri = x

Numărul este garoafe = y

x + y = 13 ......... Ecuația 1

x = 13 - y

Din moment ce, Costul unei garoafe = 3 lei și 1 trandafir = 5 lei

3x + 5y = 55 ...... Ecuația 2

Înlocuim 13 - y cu x în ecuația 2

3x + 5y = 55

3 (13 - y) + 5y = 55

39 - 3y + 5y = 55

Colectează ca termeni

- 3y + 5y = 55 - 39

2y = 16

y = 16/2

y = 8

Rezolvarea pentru x

x = 13 - y

x = 13 - 8

x = 5

Prin urmare:

Număr de trandafiri = x = 5 trandafiri

Numărul este garoafe = y = 8 garoafe

4 0
3 years ago
. The perimeter of a square is 8y – 12. The area of the square is 100 square units. What is the value of y?
evablogger [386]

Answer:

y = 6.5 units

Step-by-step explanation:

Let L be the length of sides of the square.

Given the following data;

Perimeter of square = 8y - 12

Area of square = 100 square units

To find the value of y;

Area of a square = L²

Substituting into the formula, we have;

100 = L²

L = √100

L = 10 units

Mathematically, the perimeter of a square is given by the formula;

Perimeter of a square = 4L

Substituting into the formula, we have;

8y - 12 = 4*10

8y - 12 = 40

8y = 40 + 12

8y = 52

y = 52/8

y = 6.5 units

6 0
3 years ago
Read 2 more answers
800dollars increased by 25%
AleksAgata [21]
$800 increased by 25% = 1.25 x 800 = $1,000
7 0
3 years ago
Help me...
katen-ka-za [31]
<h2>>> Answer </h2>

________

3y + 1 = 10

3y = 10 - 1

3y = 9

y = 9 ÷ 3

y = 3

6 0
3 years ago
Read 2 more answers
Other questions:
  • The word problem below has too little information. Read carefully and then
    14·1 answer
  • A consumer group has 30 members. In how many ways can the group choose 3 members to attend a national meeting?
    9·1 answer
  • 9.
    9·1 answer
  • Can anyone solve this?
    14·2 answers
  • Carpet costs $12 per square yard. How much will it cost to carpet a room that is 180 square feet?
    13·1 answer
  • PLEASE HELP FASTTTTTTT
    6·1 answer
  • Solve the system of equations. <br><br> -5x+2y=9 <br><br> y=7x
    15·2 answers
  • Create an explicit formula for this sequence: 4,-1,-6, -11, ...
    12·1 answer
  • the table shows the cost of apples, given the number of pounds purchased. Pounds (lb) Cost ($) 2 5.00 5 12.50 8 20.00 11 27.50 A
    6·1 answer
  • A circle is centered at the point (-7, -1) and passes through the point (8, 7).
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!