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
Citrus2011 [14]
3 years ago
6

Todd has 21 white tiles dnd some black tiles to make a mosaic. The mosaic has a total area of 144 Square centimeters. Each tile

has an area of 3 square. How many black tiles did Todd use?
Mathematics
1 answer:
tekilochka [14]3 years ago
3 0

Answer:the number of black tiles that Todd used is 27

Step-by-step explanation:

Let x represent the number of black tiles that Todd used.

Todd has 21 white tiles and some black tiles to make a mosaic. Each tile has an area of 3 square. It means that the total area of the white tiles is 21 × 3 = 63 cm^2

The total area of the white tiles is x × 3 = 3x cm^2

The mosaic has a total area of 144 Square centimeters. It means that

3x + 63 = 144

3x = 144 - 63 = 81

x = 81/3 = 27

You might be interested in
What’s the answer my phone calculator isn’t working
zubka84 [21]

Answer:

4.33

Step-by-step explanation:

If you don't have the cube root function in your calculator, u can chose a choice instead and cube the value.

9x9 is already 81, hence 9x9x9 > 81

27 x 27 Is definitely more than 81

Hence the only reasonable answer is 4.33

5 0
3 years ago
How many terms in 2-8+22<br> A. 1<br> B. 2<br> C. 3<br> D. 26
natima [27]

Answer:

6 is the answer.

is it right

4 0
3 years ago
Mr. Vella can build a brick wall in 4 days. His apprentice can build the same wall in 6 days. After working alone for 3 days, Mr
Vitek1552 [10]
Mr. Vella can build the wall in 4 days, however only works on it for 3 days. That means that he has completed 75% of the and is leaving 25% for his apprentice.

We need to figure out how long it takes the apprentice to build 25% of a wall. We know he can build 100% of a wall in 6 days, so dividing 6 days by 4 will give us our answer.

6/4 = 3/2 = 1.5 days

It took the apprentice 1.5 days to finish the wall.
6 0
3 years ago
Identify each measurement is the diameter radius or circumference the tires on a mining truck and 14 feet tall
sukhopar [10]

Answer:

r = 7

c = 43.98

a = 153.94

Step-by-step explanation:

4 0
3 years ago
A jet travels 480 miles in 5 hours. At this rate, how far could the jet fly in
DerKrebs [107]

Answer:1344

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • 2x^2-3x-2=0 zero product property
    13·2 answers
  • Write an equation of the line in point slop form that passes through the two given points
    5·1 answer
  • Find the area of the triangle given below.
    6·1 answer
  • The slope of a line is -1/5, and the y-intercept is 5. What is the equation of the line written in general form?
    15·1 answer
  • Mr. Li has 16 pencils. He gives 9 pencils top some students. How many pencils does Mr. Li have now?
    8·2 answers
  • You receive 9 text messages in 12 minutes. What is the rate of text messages per hour?
    5·1 answer
  • A right triangle as shown below
    5·1 answer
  • Find the Greatest common factor of 120? Show your work!
    6·1 answer
  • Harold swam 6 2/5 km in 2 hours how far could Harold swim in 5 hours
    15·1 answer
  • The ratio of boys to girls at a monster truck rally is 4:3. Create a ratio table with examples of how many boys and girls could
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!