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
lisabon 2012 [21]
3 years ago
10

A rectangle is 3 times as wide as it is long if x=10 what's the perimeter

Mathematics
1 answer:
Alex3 years ago
5 0

Answer:

80 units if the length is equal to x (it is unspecified)

Step-by-step explanation:

Assuming that the length is equal to x, then we know that the length is 10 units long because x = 10.

Since the width is 3 times longer than the length, we can also find that the width is 30 units long because 3 x 10 = 30.

Now, we can use the perimeter formula to find the perimeter of the rectangle.

The perimeter formula is P = 2 ( L + W ), with L being length and W being width.

Let's just substitute the numbers to find perimeter.

P = 2 ( 10 + 30 )

P = 2 ( 40 )

P = 80

So, the perimeter is 80 units.

You might be interested in
Consider the proof. Given: In △ABC, BD ⊥ AC Prove: the formula for the law of cosines, a2 = b2 + c2 – 2bccos(A) Statement Reason
loris [4]

Solution: The missing reason in Step 8 is substitution of x=c\cos (A).

Explanation:

The given steps are used to prove the formula for law of cosines.

From step 5 it is noticed that our equation is

a^2=b^2-2bx+c^2      ..... (1)

From step 7 it is noticed that the value of x is c\cos (A).

So by substituting c\cos (A) for x in equation (1) we get the equation of step 8, i.e.,

a^2=b^2-2bc\cos (A)+c^2

Hence, the missing reason in Step 8 is substitution of x=c\cos (A).



5 0
3 years ago
Read 2 more answers
The speed of light is about 3x10 to the 8th power meters per second. About how far can light travel in 30 minutes?
ella [17]
5.4x10^11 metres per second or 540,000,000,000 metres per second
7 0
3 years ago
An ice cream sells 4 drinks, in 5 sizes, and 7 flavors. How many ways can a customer order a drink?
tigry1 [53]

Answer:

140 ways

Step-by-step explanation:

4 x 5 x 7 = 140

3 0
3 years ago
1 point An old Honda Civic can go 351 miles on average before it runs out of gas. Its tank holds 11 gallons of gas. What is the
ad-work [718]

Answer:

32 miles per gallon

Step-by-step explanation:

351 divided by 11 = 31.90909090909090909090909090 e.t.c

8 0
3 years ago
Someone PLS HELP ME!!!!!
sdas [7]

Answer:

D

Step-by-step explanation:

if x=5 then,

y=-6×1+11

=-6+11

=5

6 0
3 years ago
Other questions:
  • 2) Line segment MK has endpoints at (2, 3) and (5, ?4). Segment M'K' is the reflection of MK over the y-axis. Which statement de
    9·2 answers
  • Pie stands for 3.14 but need to know the answer
    12·1 answer
  • Dae opens a credit card with an APR of 19.49% compounded monthly. How much is charged in interest this month if her balance is $
    15·1 answer
  • Fudge costs $2.50 per pound. Emilio has a coupon for $5 off his entire order of fudge. Write an equation to find y, the total co
    6·2 answers
  • What is one way to find the number of meters in 7 kilometers?
    5·1 answer
  • 7x^2 - 21x<br> Factor the Polynomial
    5·1 answer
  • A 1/2 cup serving of ice cream contains 140 calories. How many calories would be in a 3/4 cup serving?
    6·1 answer
  • If
    7·2 answers
  • Identify the coefficient in the term 7x^2y^3
    6·1 answer
  • Miguel went to a movie theater and bought a large bag of popcorn that cost $10. 49. To avoid spending too much money in all, he
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!