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
EastWind [94]
3 years ago
8

Consider that the length of rectangle A is 21 cm and its width is 7 cm. Which rectangle is similar to rectangle A? A) A rectangl

e with a length of 9 cm and a width of 3 cm. B) A rectangle with a length of 20 cm and a width of 10 cm. C) A rectangle with a length of 18 cm and a width of 9 cm. D) A rectangle with a length of 27 cm and a width of 3 cm.
Mathematics
2 answers:
xenn [34]3 years ago
8 0

Answer:

  A) A rectangle with a length of 9 cm and a width of 3 cm

Step-by-step explanation:

The length to width ratio for the given rectangle is ...

  21 cm : 7 cm = 3 : 1

Any similar rectangle will have the same ratio of length to width.

___

For the offered choices, the ratios are ...

  9:3 = 3:1 . . . . this is the answer

  20:10 = 2:1

  18:9 = 2:1

  27:3 = 9:1

Licemer1 [7]3 years ago
3 0

Answer:

A rectangle with a length of 9 cm and a width of 3 cm.

Step-by-step explanation:

In similar rectangles, the ratios of corresponding sides are equal.

\\\frac{length}{width} → \frac{21}{7} = \frac{3}{1} and \frac{9}{3} = \frac{3}{1}

You might be interested in
A sporting goods store wants to display 64 sneakers in rows.Each row must contain the same amount of sneakers. Which arrangement
GenaCL600 [577]

Answer:

Step-by-step explanation:

3 rows of 21 sneakers.

If you add 21+21 it equals 42, which is two rows. If you add that last row, 42+21, you end up with 63.

3 0
2 years ago
Solve -12 = z ÷ 3 for z. z =
mash [69]

Answer: z = −36

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

-12 = 1/3z

Step 2: Flip the equation.

1/3x = -12

Step 3: Multiply both sides by 3.

3* (1/3z) = (3) * (-12)

6 0
3 years ago
Read 2 more answers
An item was originally priced at $6, but you used a coupon and bought it for $4.80. What percent was the coupon you used?
Lerok [7]

Answer:

22.22% i think

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Identify the function as either a constant, direct variation, absolute value or greatest integer function f (x)=-4
boyakko [2]
Answer: Constant

No matter what the input x is, the output f(x) is going to be -4. Therefore, the output is constant. 

Note: f(x) can be interchanged with y. So we can say y = -4.
7 0
3 years ago
40 packs of baseball cards for discounted price of 64 he sells 30 packs of baseball cards to A friend at cost much should he cha
Trava [24]
Answer: $48

Step by step:
1. 30 packs times 64 dollars is 1920
2. 1920 divided by 40 packs is 48
because if you pay 64 for 40 packs and your trying to figure out how much for 30 packs you will want to set it up like this:

\frac{40}{64}  \times  \frac{30}{x}
then you will use fishy method Google fish method in math if this doesn't help

5 0
3 years ago
Other questions:
  • What is the mean of the probability distribution?
    13·1 answer
  • State a true conclusion.
    14·1 answer
  • Is 104.42 rational or irrational
    12·1 answer
  • I need the answer pls pls pls answer pls
    6·1 answer
  • Suppose you plan to purchase 10 items that each cost 4.45. Explain how you use mental math to to find the cost of 10 items
    9·1 answer
  • Please help me with questions 11-13 god bless
    10·1 answer
  • 3<br> -3-2-1<br> (2 зх<br> what is the solution to the system shown in this graph
    15·1 answer
  • If there are 28 centimeters and 2 centimeters = 3 meters, how many meters do you have
    9·1 answer
  • $10,000×0.0475×0.25?
    13·2 answers
  • Is this a statistical question?<br> "How tall is a palm tree"
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!