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
valentinak56 [21]
2 years ago
11

Heather and her friends are painting the walls of a storage room in the basement. Each wall is 9 m long and 2 m high. There are

two doors, each 1 m wide and 2 m high. The doors are not being painted.
One litre of paint covers 10 m2. How many litres of paint will Heather need?

The price of the paint is $3.75/L. How much will the paint cost?​
Mathematics
1 answer:
inna [77]2 years ago
5 0

Answer:

  • 7 L
  • $26.25

Step-by-step explanation:

The four walls have a linear length of (9 m)×4 = 36 m. Of that, the two 1-meter doors are not painted, so the linear length of the painted area is 34 m. The painted area is 2 m high, so the total area being painted is ...

  A = LW

  A = (34 m)(2 m) = 68 m²

The amount of paint needed for this area is ...

  (68 m²) × (1 L/(10 m²) = 6.8 L

If we assume the paint only comes in units of 1 L, then Heather will need 7 L of paint.

The cost of 7 L of paint is ...

  (7 L) × ($3.75/L) = $26.25

Heather will need 7 L of paint, for a total cost of $26.25.

You might be interested in
Sarah rides her bicycle 2.7 miles to school.She takes a different route home,which is 2.5 miles.How many miles does Sarah ride t
adell [148]
5.2 miles to ride to and from school
8 0
3 years ago
Read 2 more answers
In a scale drawing of a painting. 1 centimeter represents 5 inches.
AnnyKZ [126]

Answer:

a(5

b)30

Step-by-step explanation:

in the first one you divide 25 by 5

in the second one you multiply 6 times 5

3 0
3 years ago
Which expression is modeled by this set of arrows on the number line
diamong [38]

Answer:

A

Step-by-step explanation:

they are both -

8 0
3 years ago
Read 2 more answers
Simplify: 5x( 3 - 12x )-3(4- 20x^2 )
krok68 [10]

Answer: 3(5x - 4)

Step-by-step explanation: You first renarange your terms. Then you distribute them. Then you combine the the like terms. Then you find the common factor by factoring by group.

8 0
2 years ago
Read 2 more answers
Help pleaseee I don’t understand!!!
Marta_Voda [28]
Its pretty simple, its x then y, if u have any questions message me
4 0
3 years ago
Other questions:
  • Ok who wants 37 points! Just say anything so you can get it.... :)
    10·2 answers
  • Can 7 over 63 be simplified
    12·2 answers
  • What is the surface area of a cube with a side of length 14 meters?
    5·1 answer
  • Can you help me pls 6th grade
    11·1 answer
  • Plz answer right know thank u its for my lil sis thank i guys
    7·2 answers
  • Decrease 20g by 90% I don’t get this
    9·2 answers
  • Can someone please help me no links please
    14·1 answer
  • PLease help meeeeeeeee!
    6·2 answers
  • A group of college students developed a solar-powered car and entered it in a car.
    6·1 answer
  • Which expression is equivalent to 4(5r+9)?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!