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
-Dominant- [34]
3 years ago
5

The supermarket has 30 aisles. 10% of the aisles are empty, without any shoppers. ​How many empty aisles are there in the superm

arket?
​​
Mathematics
1 answer:
lina2011 [118]3 years ago
3 0
3

10/100=x/30
Cross multiply

100x=300
Divide each side by 100

X=3
You might be interested in
For each rectangle below, write a linear equation that represents the area y of the rectangle. Solve this system of two linear e
Hatshy [7]

(5,24)

  • The two areas are the same.

  • To find the area, we multiply the side lengths. Y=area

Rectangle 1: side lengths 4 and (x+1)

y=4(x+1)= 4x+4

Rectangle 2: side lengths 3 and (2x-2)

y=3(2x-2)= 6x-6

  • Since the two areas are same, we can conclude that

4x+4=6x-6

  • Now, simplify.

-2x=-10, x=5

  • Since x is 5, we can plug it into the equations to find y.

Option 1 with rectangle 1: y=4(5)+4, y=24

Option 2 with rectangle 2: y=6(5)-5, y=24

I graphed the linear equation on desmos.

5 0
3 years ago
If 6 - 7 = -1, which of the following is true?
MAXImum [283]
The answer is -1 + 7 = 6
6 0
3 years ago
Writing to explain Describe a point
3241004551 [841]
A point is an exact position or location on a plane surface. It is important to understand that a point is not a thing, but a place. We indicate the position of a point by placing a dot with a pencil. This dot may have a diameter of, say, 0.2mm, but a point has no size. No matter how far you zoomed in, it would still have no width. Since a point is a place, not a thing, it has no dimensions. Points are usually named by using an upper-case single letter. Usually represented by a dot.
5 0
3 years ago
(x^3-5x^2+7x-12) (x-4)
Marta_Voda [28]

Answer:

^4 − 9 ^ 3 + 2 7 ^2 − 4 0 +4 8

Step-by-step explanation:

5 0
3 years ago
Shayla is balancing her checkbook. Which subset of real numbers best describes her balance?
vladimir1956 [14]
Money values are usually rounded to the nearest hundredth (2 decimal places).

Thus, this means that her balance can be whole or a terminating decimal to the nearest hundredth.

Therefore, the subset of real numbers that best describes her balance is the set of rational numbers.
4 0
3 years ago
Other questions:
  • I really need help with this geometry on number 7 like help please!!
    7·1 answer
  • the coordinates of the vertices of triangle ABC are a (-2,2), b (5,-3), c (-4,-1). Identify the perimeter of triangle ABC.
    8·1 answer
  • What is an rational number
    14·2 answers
  • Brenda can deliver 644 newspapers in 7 hours.<br> How many newspapers can Brenda deliver in 9 hours?
    13·1 answer
  • How to simplify this?<br>(3a-b)+2a
    5·2 answers
  • Question 15
    6·2 answers
  • CAN SOMEONE HELP PLEASE!
    12·2 answers
  • Evaluate the expression when a=9.<br> 2a2
    10·2 answers
  • Who is from india and speaks malyalam i do but i was born in america
    12·2 answers
  • Can someone help I’m stuck
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!