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
FrozenT [24]
3 years ago
9

The perimeter of a rectangle is 128 cm. The length of the rectangle is three times longer than the width. What is the length and

width of the rectangle?
Mathematics
1 answer:
allochka39001 [22]3 years ago
4 0

Answer:

l=16 cm

w=48 cm

Step-by-step explanation:

perimeter of rectangle formula:

2l+2w

where

3w=l

and w=w

so

2(3w)+2w=128

6w+2w=128

8w=128

w=16

now substitute 16:

2l+2(16)=128

2l+32=128

2l=96

l=48

You might be interested in
A line that passes through the points (−5, 7) (10, 1). Using the mx+b format
lianna [129]

Answer:

y=2x-19

Step-by-step explanation:

I'm guessing you mean slope intercept form y=mx+b

If so, first you would have to find the slope of the line

To do that, use the formula y2-y1/x2-x1

Remember you can pick any coordinate pair for this

I will pick 1=y2 -5=y1 10=x2 and 7=x1

When I put that in the equation I get 1-(-5)/10-7

Overall I get 6/3, or 2

Now to find the y intercept, you plug in the slope and one of the coordinates(any is fine)

I will pick (10,1)

1=y and 10=x and 2=m

1=2(10)+b

this simplifies to 1=20+b

now subtract 20 from both sides and get -19 = b

Now you have your equation y=2x-19

6 0
3 years ago
Read 2 more answers
How to find the surface area of a triangular prism ? Grade 6 style and easiest way possible
matrenka [14]
Alright so
Surface area = (width x height) + (length x width) + (length x height) + (length x side)

3 0
3 years ago
Help pls asap!!!!!!! brainliest!!!!!!
Rama09 [41]

Answer:

D!

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
If the probability of win is 0.2 and the probability of draw is 0.1 what's the probability of loss
Dovator [93]
The probability of loss is 

1 - 0.2 - 0.1 = 0.7
6 0
3 years ago
Bob has 200 coins in her piggy bank. Of those 40%are pennies. Out of the coins that are not pennies 25% are quarters. How many o
nadezda [96]

Answer: 200 x .40 = 80 (there are 80 pennies)

200 - 80 = 120

120 x .25 = 30 (there are 30 quarters)


Step-by-step explanation:


7 0
3 years ago
Read 2 more answers
Other questions:
  • Pls help idk how to work it out❤️
    11·2 answers
  • the area of ava rectangular back yard is 325 square yards.if the length of the yards is 13 yards,what is the width of the yard
    7·2 answers
  • What is the combined time of crater and frater
    15·1 answer
  • PLS HELP ME ASAP FOR 12 (SHOW WORK!!)
    5·1 answer
  • 6 more than 5 times a number y
    13·2 answers
  • Name the coefficients, the like terms, and constants.<br> 8jk - 2 + 4kj - 3k - 9
    9·1 answer
  • A company has recently been hiring new employees. Today the company has 34% more employees than it did a year ago. If there are
    6·2 answers
  • LD earns $18.50/h and works 40h/wk. what is LD’s average monthly income
    6·1 answer
  • Select the shapes that are similar to shape A
    10·2 answers
  • 2(3-x)-1.4(5-2x)=2x+5.3
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!